";
- break;
- }
- }
- }
- }else{
- if(metaData.names[config.x] == key){
- dynamicContent += "X ("+key+"):"+dataObj[key]+"
";
- }
- if(metaData.names[config.y] == key){
- dynamicContent += "Y ("+key+"):"+dataObj[key]+"
";
- }
- }
- }
- }
-
- $tip.append(dynamicContent);
-
- var canvasWidth = canvas.width;
- var canvasHeight = canvas.height;
-
- var el = $('.marks[style*="width"]');
-
- if(el.length > 0){
- canvasWidth = parseFloat($(".marks")[0].style.width);
- canvasHeight = parseFloat($(".marks")[0].style.height);
- }
- var dynamicWidth = $tip.width();
- var dynamicHeight = $tip.height();
-
- var toolTipWidth = item.bounds.x2 + config.padding.left + dynamicWidth;
- var toolTipHeight = (canvasHeight - item.bounds.y2) - config.padding.top + dynamicHeight;
- var toolTipCalculatedXPosition;
- var toolTipCalculatedYPosition = ((item.bounds.y2 + config.padding.top) - dynamicHeight);
-
- if(toolTipWidth > canvasWidth){
- toolTipCalculatedXPosition = ((item.bounds.x2 + config.padding.left) - dynamicWidth);
- }else{
- toolTipCalculatedXPosition = (item.bounds.x2 + config.padding.left);
- }
-
- if(toolTipHeight > canvasHeight){
- toolTipCalculatedYPosition = item.bounds.y2 + config.padding.top;
- }
-
- $tip.css({left:toolTipCalculatedXPosition,top:toolTipCalculatedYPosition}).show();
- }else{
-
- if($("#wrapper #tip").length) {
- $tip.remove();
- }
- if($(div).closest("#wrapper").length) {
- $(div).unwrap();
- }
- }
- })
-};
-
-
-
-function createTooltip(div) {
- document.getElementById(div.replace("#", "")).innerHTML = document.getElementById(div.replace("#", "")).innerHTML
- + "
";
-}
-
-function bindTooltip(div, view, config, metadata){
-
- view.on("mouseover", function(event, item) {
- if (item != null && item.mark.marktype == config.tooltip.type) {
- var tooltipDiv = document.getElementById(div.replace("#", "")+"-tooltip");
- var tooltipContent = "";
-
- if (item.datum[metadata.names[config.x]]!= null) {
- var content;
-
- //Default tooltip content if tooltip content is not defined
- if (config.tooltip.content == null) {
- if (metadata.types[config.x]== "time") {
- var dFormat = d3.time.format(config.dateFormat);
- content = dFormat(new Date(parseInt(item.datum[metadata.names[config.x]])));
- } else {
- content = item.datum[metadata.names[config.x]];
- }
-
- tooltipContent += ""+ metadata.names[config.x] +" : "+content+""+ metadata.names[config.y] + " : "+item.datum[metadata.names[config.y]]+""+ config.tooltip.content[i] +" : "+content+"= this.config.maxLength){
- var allowedDataSet = [];
- var startingPoint = dataset.length - maxValue;
- for(var i = startingPoint; i < dataset.length;i++){
- allowedDataSet.push(dataset[i]);
- }
- this.spec.data[0].values = allowedDataSet;
- }
- }
- this.config.tooltip.type = "rect";
- drawChart(div, this, callbacks);
-};
-
-bar.prototype.insert = function(data) {
-
- var xAxis = this.metadata.names[this.config.x];
- var yAxis = this.metadata.names[this.config.y];
- var size = this.metadata.names[this.config.size];
- var color = this.metadata.names[this.config.color];
-
- if (this.config.maxLength != -1 && this.config.maxLength < (this.view.data(this.config.title).values().length + data.length)) {
-
- var allDataSet = this.view.data(this.config.title).values().concat(data);
- var allowedRemovableDataSet = [];
- for (i = 0; i < allDataSet.length - this.config.maxLength; i++) {
- allowedRemovableDataSet.push(this.view.data(this.config.title).values()[i][xAxis]);
- }
-
- for (i = 0; i < data.length; i++) {
- var isValueMatched = false;
- this.view.data(this.config.title).update(function(d) {
- if (color == null) {
- return d[xAxis] == data[i][xAxis];
- } else {
- return d[xAxis] == data[i][xAxis] && d[color] == data[i][color];
- }
- },
- yAxis,
- function(d) {
- isValueMatched = true;
- return data[i][yAxis];
- });
-
- if(isValueMatched){
- var isIndexRemoved = false;
-
- var index = allowedRemovableDataSet.indexOf(data[i][xAxis]);
- if (index > -1) {
- // updated value matched in allowed removable values
- isIndexRemoved = true;
- allowedRemovableDataSet.splice(index, 1);
- }
-
- if(!isIndexRemoved){
- // updated value NOT matched in allowed removable values
- allowedRemovableDataSet.splice((allowedRemovableDataSet.length - 1), 1);
- }
-
- } else {
- //insert the new data
- this.view.data(this.config.title).insert([data[i]]);
- this.view.update();
- }
- }
-
- var oldData;
- var removeFunction = function(d) {
- return d[xAxis] == oldData;
- };
-
- for (i = 0; i < allowedRemovableDataSet.length; i++) {
- oldData = allowedRemovableDataSet[i];
- this.view.data(this.config.title).remove(removeFunction);
- }
- } else{
- for (i = 0; i < data.length; i++) {
- var isValueMatched = false;
- this.view.data(this.config.title).update(function(d) {
- if (color == null) {
- return d[xAxis] == data[i][xAxis];
- } else {
- return d[xAxis] == data[i][xAxis] && d[color] == data[i][color];
- }
- },
- yAxis,
- function(d) {
- isValueMatched = true;
- return data[i][yAxis];
- });
-
- if(!isValueMatched){
- this.view.data(this.config.title).insert([data[i]]);
- }
- }
- }
-
- //Group does not support duration update animation
- if (this.config.mode == "group") {
- this.view.update();
- } else {
- this.view.update({duration: 200});
- }
-};
-
-bar.prototype.getSpec = function() {
- return this.spec;
-};
-
-
-function getBarMark(config, metadata){
- var markContent;
- if (config.orientation == "left") {
- markContent = {
- "y": {"scale": "x", "field": metadata.names[config.x]},
- "height": {"scale": "x", "band": true, "offset": -10},
- "x": {"scale": "y", "field": metadata.names[config.y]},
- "x2": {"scale": "y", "value": 0},
- "fill": {"value": config.markColor},
- "fillOpacity": {"value": 1}
- };
- } else {
- markContent = {
- "x": {"scale": "x", "field": metadata.names[config.x]},
- "width": {"scale": "x", "band": true, "offset": -10},
- "y": {"scale": "y", "field": metadata.names[config.y]},
- "y2": {"scale": "y", "value": 0},
- "fill": {"value": config.markColor},
- "fillOpacity": {"value": 1}
- };
- }
-
- var mark = {
- "type": "rect",
- "from": {"data": config.title},
- "properties": {
- "update": markContent,
- "hover": {
- "fillOpacity": {"value": 0.5}
- }
- }
- };
-
-
- return mark;
-}
-
-function getStackBarMark(config, metadata){
-
- var markContent;
- if (config.orientation == "left") {
- mark = {
- "type": "rect",
- "from": {
- "data": config.title,
- "transform": [
- { "type": "stack",
- "groupby": [metadata.names[config.x]],
- "sortby": [metadata.names[config.color]],
- "field":metadata.names[config.y]}
- ]
- },
- "properties": {
- "update": {
- "y": {"scale": "x", "field": metadata.names[config.x]},
- "height": {"scale": "x", "band": true, "offset": -10},
- "x": {"scale": "y", "field": "layout_start"},
- "x2": {"scale": "y", "field": "layout_end"},
- "fill": {"scale": "color", "field": metadata.names[config.color]},
- "fillOpacity": {"value": 1}
- },
- "hover": {
- "fillOpacity": {"value": 0.5}
- }
- }
- };
- } else {
- mark = {
- "type": "rect",
- "from": {
- "data": config.title,
- "transform": [
- { "type": "stack",
- "groupby": [metadata.names[config.x]],
- "sortby": [metadata.names[config.color]],
- "field":metadata.names[config.y]}
- ]
- },
- "properties": {
- "update": {
- "x": {"scale": "x", "field": metadata.names[config.x]},
- "width": {"scale": "x", "band": true, "offset": -10},
- "y": {"scale": "y", "field": "layout_start"},
- "y2": {"scale": "y", "field": "layout_end"},
- "fill": {"scale": "color", "field": metadata.names[config.color]},
- "fillOpacity": {"value": 1}
- },
- "hover": {
- "fillOpacity": {"value": 0.5}
- }
- }
- };
- }
-
-
-
-
- return mark;
-}
-
-function getGroupBarMark(config, metadata){
- var mark;
- if (config.orientation == "left") {
- mark = {
- "type": "group",
- "from": {
- "data": config.title,
- "transform": [{"type":"facet", "groupby": [metadata.names[config.x]]}]
- },
- "properties": {
- "update": {
- "y": {"scale": "x", "field": "key"},
- "height": {"scale": "x", "band": true}
- }
- },
- "scales": [
- {
- "name": "pos",
- "type": "ordinal",
- "range": "height",
- "domain": {"field": metadata.names[config.color]}
- }
- ],
- "marks": [
- {
- "name": "bars",
- "type": "rect",
- "properties": {
- "update": {
- "y": {"scale": "pos", "field": metadata.names[config.color]},
- "height": {"scale": "pos", "band": true},
- "x": {"scale": "y", "field": metadata.names[config.y]},
- "x2": {"scale": "y", "value": 0},
- "fill": {"scale": "color", "field": metadata.names[config.color]},
- "fillOpacity": {"value": 1}
- },
- "hover": {
- "fillOpacity": {"value": 0.5}
- }
- }
- }
- ]
- };
- } else {
- mark = {
- "type": "group",
- "from": {
- "data": config.title,
- "transform": [{"type":"facet", "groupby": [metadata.names[config.x]]}]
- },
- "properties": {
- "update": {
- "x": {"scale": "x", "field": "key"},
- "width": {"scale": "x", "band": true}
- }
- },
- "scales": [
- {
- "name": "pos",
- "type": "ordinal",
- "range": "width",
- "domain": {"field": metadata.names[config.color]}
- }
- ],
- "marks": [
- {
- "name": "bars",
- "type": "rect",
- "properties": {
- "update": {
- "x": {"scale": "pos", "field": metadata.names[config.color]},
- "width": {"scale": "pos", "band": true},
- "y": {"scale": "y", "field": metadata.names[config.y]},
- "y2": {"scale": "y", "value": 0},
- "fill": {"scale": "color", "field": metadata.names[config.color]},
- "fillOpacity": {"value": 1}
- },
- "hover": {
- "fillOpacity": {"value": 0.5}
- }
- }
- }
- ]
- };
- }
- return mark;
-}
-
diff --git a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar.min.js b/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar.min.js
deleted file mode 100644
index 9c3da1bff7..0000000000
--- a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar.min.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License./
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-function getPieMark(a,b){var c;if("donut"==a.mode)var c=a.width/5*(1+a.innerRadius);else if("pie"==a.mode)var c=0;else{a.innerRadius+=.5;var c=a.width/5*(1+a.innerRadius)}var d=a.title,e="";null!=a.type&&(d="layout",e="a.");var f={type:"arc",from:{data:d},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},startAngle:{field:"layout_start"},endAngle:{field:"layout_end"},innerRadius:{value:c},outerRadius:{value:.4*a.width},fill:{scale:"color",field:e+b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.8},cursor:{value:a.hoverCursor}}}};return f}function getPieMidText(a,b){var c={type:"text",from:{data:"layout"},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},radius:{value:0},theta:{field:"layout_mid"},fill:[{test:"indata('arc', datum.a."+b.names[a.color]+", 'type')",scale:"color",field:b.names[a.color]},{}],align:{value:"center"},baseline:{value:"middle"},fontSize:{value:a.width/9},text:{template:"{{datum.percentage | number:'.2f'}}%"}}}};return c}function getPieText(a,b){var c={type:"text",from:{data:"layout"},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},radius:{value:.5*a.width},theta:{field:"layout_mid"},fill:{value:"#000"},align:{value:"center"},baseline:{value:"middle"},text:{template:"{{datum.percentage | number:'.2f'}}%"}}}};return c}function getAreaMark(a,b){var c;return c=-1!=a.color?{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.color]]}]},marks:[{type:"area",properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5}}}}]}:{type:"area",from:{data:a.title},properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{value:a.markColor},strokeWidth:{value:2},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}}}function getBarMark(a,b){var c;c="left"==a.orientation?{y:{scale:"x",field:b.names[a.x]},height:{scale:"x",band:!0,offset:calculateBarGap(a)},x:{scale:"y",field:b.names[a.y]},x2:{scale:"y",value:0},fill:{value:a.markColor},fillOpacity:{value:1}}:{x:{scale:"x",field:b.names[a.x]},width:{scale:"x",band:!0,offset:calculateBarGap(a)},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{value:a.markColor},fillOpacity:{value:1}};var d={type:"rect",from:{data:a.title},properties:{update:c,hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}};return d}function getStackBarMark(a,b){return"left"==a.orientation?mark={type:"rect",from:{data:a.title,transform:[{type:"stack",groupby:[b.names[a.x]],sortby:[b.names[a.color]],field:b.names[a.y]}]},properties:{update:{y:{scale:"x",field:b.names[a.x]},height:{scale:"x",band:!0,offset:calculateBarGap(a)},x:{scale:"y",field:"layout_start"},x2:{scale:"y",field:"layout_end"},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}}:mark={type:"rect",from:{data:a.title,transform:[{type:"stack",groupby:[b.names[a.x]],sortby:[b.names[a.color]],field:b.names[a.y]}]},properties:{update:{x:{scale:"x",field:b.names[a.x]},width:{scale:"x",band:!0,offset:calculateBarGap(a)},y:{scale:"y",field:"layout_start"},y2:{scale:"y",field:"layout_end"},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}},mark}function getGroupBarMark(a,b){var c;return c="left"==a.orientation?{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.x]]}]},properties:{update:{y:{scale:"x",field:"key"},height:{scale:"x",band:!0}}},scales:[{name:"pos",type:"ordinal",range:"height",domain:{field:b.names[a.color]}}],marks:[{name:"bars",type:"rect",properties:{update:{y:{scale:"pos",field:b.names[a.color]},height:{scale:"pos",band:!0},x:{scale:"y",field:b.names[a.y]},x2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}}]}:{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.x]]}]},properties:{update:{x:{scale:"x",field:"key"},width:{scale:"x",band:!0}}},scales:[{name:"pos",type:"ordinal",range:"width",domain:{field:b.names[a.color]}}],marks:[{name:"bars",type:"rect",properties:{update:{x:{scale:"pos",field:b.names[a.color]},width:{scale:"pos",band:!0},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}}]}}function calculateBarGap(a){var b;return b="left"==a.orientation?a.height:a.width,-a.barGap*(b/30)}function getLineMark(a,b){var c;return c=-1!=a.color?{name:"line-group",type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.color]]}]},marks:[{type:"line",properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},stroke:{scale:"color",field:b.names[a.color]},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5},cursor:{value:a.hoverCursor}}}}]}:{type:"line",from:{data:a.title},properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},stroke:{value:a.markColor},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5}}}}}function getTopoJson(a,b){var c,d=a.width,e=a.height,f=a.charts[0].mapType,g="mercator";"usa"==f?(d=a.width-160,e=a.height-130,c=a.height+270,g="albersUsa"):"europe"==f?(d=(a.width/2+100)/2,e=a.height+150,c=a.height+50):(c=a.width/640*120,d=a.width/2+10,e=a.height/2+40);var h=a.geoCodesUrl,i={name:"geoData",url:h,format:{type:"topojson",feature:"units"},transform:[{type:"geopath",value:"data",scale:c,translate:[d,e],projection:g},{type:"lookup",keys:["id"],on:a.title,onKey:b.names[a.x],as:["zipped"],"default":{v:null,country:"No data"}}]};return i}function getMapMark(a,b){var c=[{name:"map",type:"path",from:{data:"geoData"},properties:{enter:{path:{field:"layout_path"}},update:{fillOpacity:{value:1},fill:{rule:[{predicate:{name:"isNotNull",id:{field:"zipped.v"}},scale:"color",field:"zipped.v"},{value:a.mapColor}]}},hover:{fillOpacity:{value:.5},cursor:{value:a.hoverCursor}}}},{type:"group",from:{data:a.title,transform:[{type:"filter",test:"datum."+b.names[a.x]+" == tooltipSignal.datum."+b.names[a.x]}]},properties:{update:{x:{signal:"tooltipSignal.x",offset:-5},y:{signal:"tooltipSignal.y",offset:20},width:{value:100},height:{value:20},fill:{value:a.tooltip.color}}},marks:[{type:"text",properties:{update:{x:{value:6},y:{value:14},text:{template:"{{tooltipSignal.datum.unitName}} {{tooltipSignal.datum.v}}"},fill:{value:"black"}}}}]}];return c}function getMapSignals(){var a=[{name:"tooltipSignal",init:{expr:"{x: 0, y: 0, datum: {} }"},streams:[{type:"@map:mouseover",expr:"{x: eventX(), y: eventY(), datum: eventItem().datum.zipped}"},{type:"@map:mouseout",expr:"{x: 0, y: 0, datum: {} }"}]}];return a}function getMapPredicates(){var a={name:"isNotNull",type:"!=",operands:[{value:null},{arg:"id"}]};return a}function getMapLegends(a,b){var c={fill:"color",title:b.names[a.y],properties:{gradient:{stroke:{value:"transparent"}},title:{fontSize:{value:14}},legend:{x:{value:0},y:{value:a.height-40}}}};return c}function loadGeoMapCodes(a){var b,c=new XMLHttpRequest;return c.overrideMimeType("application/json"),c.open("GET",a,!1),c.onreadystatechange=function(){4==c.readyState&&"200"==c.status&&(b=JSON.parse(c.responseText))},c.send(null),b}function getMapCode(a,b,c){if("world"==b||"europe"==b)for(d=0;d"),$("#wrapper").append("
"),$tip=$("#tip"),$tip.empty();var i=g.datum,j="";for(var k in i)if(i.hasOwnProperty(k))if(void 0!=f){for(var l=0;l"+f[l]+" ("+k+"):"+i[k]+"";break}}else e.names[d.x]==k&&(j+="X ("+k+"):"+i[k]+"
"),e.names[d.y]==k&&(j+="Y ("+k+"):"+i[k]+"
");$tip.append(j);var n=h.width,o=h.height,p=$('.marks[style*="width"]');p.length>0&&(n=parseFloat($(".marks")[0].style.width),o=parseFloat($(".marks")[0].style.height));var q,r=$tip.width(),s=$tip.height(),t=g.bounds.x2+d.padding.left+r,u=o-g.bounds.y2-d.padding.top+s,v=g.bounds.y2+d.padding.top-s;q=t>n?g.bounds.x2+d.padding.left-r:g.bounds.x2+d.padding.left,u>o&&(v=g.bounds.y2+d.padding.top),$tip.css({left:q,top:v}).show()}else $("#wrapper #tip").length&&$tip.remove(),$(a).closest("#wrapper").length&&$(a).unwrap()})}function createTooltip(a){document.getElementById(a.replace("#","")).innerHTML=document.getElementById(a.replace("#","")).innerHTML+"
"}function bindTooltip(a,b,c,d){b.on("mouseover",function(b,e){if(null!=e&&e.mark.marktype==c.tooltip.type){var f=e.datum;null!=e.datum&&null!=e.datum.a&&(f=e.datum.a);var g=document.getElementById(a.replace("#","")+"-tooltip"),h="";if(null!=f[d.names[c.x]]){var i;if(null==c.tooltip.content){if("time"==d.types[c.x]){var j=d3.time.format(c.dateFormat);i=j(new Date(parseInt(f[d.names[c.x]])))}else i=f[d.names[c.x]];h+=""+d.names[c.x]+" : "+i+""+d.names[c.y]+" : "+f[d.names[c.y]]+""+c.tooltip.content[k]+" : "+i+"=this.config.maxLength){for(var f=[],g=d.length-e,h=g;h=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g-1&&(h=!0,f.splice(j,1)),h||f.splice(f.length-1,1)}else this.view.data(this.config.title).insert([a[i]]),this.view.update()}var k,l=function(a){return a[b]==k};for(i=0;i=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g"+c+"
";document.getElementById(a).innerHTML=d,this.view=b},number.prototype.insert=function(a){document.getElementById(this.view).innerHTML=a[a.length-1][this.metadata.names[this.config.x]]};var scatter=function(a,b){this.metadata=a[0].metadata;var c=[];this.spec={},b=checkConfig(b,this.metadata),this.config=b,a[0].name=b.title;var d={name:"size",type:"linear",range:[0,576],domain:{data:b.title,field:this.metadata.names[b.size]}},e={name:"color",type:this.metadata.types[b.color],range:b.colorScale,domain:{data:b.title,field:this.metadata.names[b.color]}},f=getXYScales(b,this.metadata);f.push(d),f.push(e);var g=getXYAxes(b,"x","x","y","y");c.push(getScatterMark(b,this.metadata)),this.config.legend&&"linear"!=this.metadata.types[b.color]&&(this.spec.legends=getLegend(this.config)),this.spec.width=b.width,this.spec.height=b.height,this.spec.axes=g,this.spec.data=a,this.spec.scales=f,this.spec.padding=b.padding,this.spec.marks=c};scatter.prototype.draw=function(a,b){var c=function(c){if(this.config.tooltip.enabled?(createTooltip(a),this.view=c({el:a}).renderer(this.config.renderer).update(),bindTooltip(a,this.view,this.config,this.metadata)):this.view=c({el:a}).renderer(this.config.renderer).update(),null!=b)for(var d=0;d=this.config.maxLength){for(var f=[],g=d.length-e,h=g;h-1&&(j=!0,g.splice(k,1)),j||g.splice(g.length-1,1)}else this.view.data(this.config.title).insert([a[i]]),this.view.update()}var l,m=function(a){return a[b]==l};for(i=0;ib.maxLength){var k=d3.select("tbody").selectAll("tr").data().slice(d3.select("tbody").selectAll("tr").data().length-b.maxLength,b.maxLength);d3.select("tbody").selectAll("tr").data(k,function(a){return a}).remove()}};var extend=function(a,b){var c,d={};for(c in a)Object.prototype.hasOwnProperty.call(a,c)&&(d[c]=a[c]);for(c in b)Object.prototype.hasOwnProperty.call(b,c)&&(d[c]=b[c]);return d},stack=function(a,b){this.barChart=new bar(a,b),this.metadata=this.barChart.metadata;var c=this.barChart.getSpec();c.axes=[c.axes[0]],c.axes[0].grid=!1,c.data.push({name:"selectedPoints",modify:[{type:"clear",test:"!multi"},{type:"toggle",signal:"clickedPoint",field:"id"}]}),c.signals.push({name:"clickedPoint",init:0,verbose:!0,streams:[{type:"click",expr:"datum._id"}]},{name:"multi",init:!1,verbose:!0,streams:[{type:"click",expr:"datum._id"}]});var d=JSON.parse(JSON.stringify(c.marks[0]));d.type="text",d.properties.update.text={field:c.marks[0].properties.update.fill.field},d.properties.update.x.offset=10,d.properties.update.y.offset=-5,d.properties.update.fill={value:b.legendTitleColor},delete d.properties.update.y2,delete d.properties.hover,c.marks.push(d),delete c.marks[0].properties.hover,c.marks[0].properties.update.fill=[{test:"indata('selectedPoints', datum._id, 'id')",value:b.selectionColor},c.marks[0].properties.update.fill],this.barChart.setSpec(c)};stack.prototype.draw=function(a,b){this.barChart.draw(a,b)},stack.prototype.insert=function(a){this.barChart.insert(a)},stack.prototype.getSpec=function(){return this.barChart.getSpec()};
\ No newline at end of file
diff --git a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar2.min.js b/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar2.min.js
deleted file mode 100755
index 222168b488..0000000000
--- a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/VizGrammar2.min.js
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License./
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-function getPieMark(a,b){var c;if("donut"==a.mode)var c=a.width/5*(1+a.innerRadius);else if("pie"==a.mode)var c=0;else{a.innerRadius+=.5;var c=a.width/5*(1+a.innerRadius)}var d={type:"arc",from:{data:a.title},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},startAngle:{field:"layout_start"},endAngle:{field:"layout_end"},innerRadius:{value:c},outerRadius:{value:.4*a.width},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.8}}}};return d}function getPieMidText(a,b){var c={type:"text",from:{data:a.title},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},radius:{value:0},theta:{field:"layout_mid"},fill:[{test:"indata('arc', datum.EngineType, 'type')",scale:"color",field:b.names[a.color]},{}],align:{value:"center"},baseline:{value:"middle"},fontSize:{value:a.width/8},text:{template:"{{datum.percentage | number:'.2f'}}%"}}}};return c}function getPieText(a,b){var c={type:"text",from:{data:a.title},properties:{update:{x:{field:{group:"width"},mult:.5},y:{field:{group:"height"},mult:.5},radius:{value:.5*a.width},theta:{field:"layout_mid"},fill:{value:"#000"},align:{value:"center"},baseline:{value:"middle"},text:{template:"{{datum.percentage | number:'.2f'}}%"}}}};return c}function getAreaMark(a,b){var c;return c=-1!=a.color?{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.color]]}]},marks:[{type:"area",properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5}}}}]}:{type:"area",from:{data:a.title},properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{value:a.markColor},strokeWidth:{value:2},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}}}function getBarMark(a,b){var c;c="left"==a.orientation?{y:{scale:"x",field:b.names[a.x]},height:{scale:"x",band:!0,offset:-10},x:{scale:"y",field:b.names[a.y]},x2:{scale:"y",value:0},fill:{value:a.markColor},fillOpacity:{value:1}}:{x:{scale:"x",field:b.names[a.x]},width:{scale:"x",band:!0,offset:-10},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{value:a.markColor},fillOpacity:{value:1}};var d={type:"rect",from:{data:a.title},properties:{update:c,hover:{fillOpacity:{value:.5}}}};return d}function getStackBarMark(a,b){return"left"==a.orientation?mark={type:"rect",from:{data:a.title,transform:[{type:"stack",groupby:[b.names[a.x]],sortby:[b.names[a.color]],field:b.names[a.y]}]},properties:{update:{y:{scale:"x",field:b.names[a.x]},height:{scale:"x",band:!0,offset:-10},x:{scale:"y",field:"layout_start"},x2:{scale:"y",field:"layout_end"},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}}:mark={type:"rect",from:{data:a.title,transform:[{type:"stack",groupby:[b.names[a.x]],sortby:[b.names[a.color]],field:b.names[a.y]}]},properties:{update:{x:{scale:"x",field:b.names[a.x]},width:{scale:"x",band:!0,offset:-10},y:{scale:"y",field:"layout_start"},y2:{scale:"y",field:"layout_end"},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}},mark}function getGroupBarMark(a,b){var c;return c="left"==a.orientation?{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.x]]}]},properties:{update:{y:{scale:"x",field:"key"},height:{scale:"x",band:!0}}},scales:[{name:"pos",type:"ordinal",range:"height",domain:{field:b.names[a.color]}}],marks:[{name:"bars",type:"rect",properties:{update:{y:{scale:"pos",field:b.names[a.color]},height:{scale:"pos",band:!0},x:{scale:"y",field:b.names[a.y]},x2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}}]}:{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.x]]}]},properties:{update:{x:{scale:"x",field:"key"},width:{scale:"x",band:!0}}},scales:[{name:"pos",type:"ordinal",range:"width",domain:{field:b.names[a.color]}}],marks:[{name:"bars",type:"rect",properties:{update:{x:{scale:"pos",field:b.names[a.color]},width:{scale:"pos",band:!0},y:{scale:"y",field:b.names[a.y]},y2:{scale:"y",value:0},fill:{scale:"color",field:b.names[a.color]},fillOpacity:{value:1}},hover:{fillOpacity:{value:.5}}}}]}}function getLineMark(a,b){var c;return c=-1!=a.color?{type:"group",from:{data:a.title,transform:[{type:"facet",groupby:[b.names[a.color]]}]},marks:[{type:"line",properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},stroke:{scale:"color",field:b.names[a.color]},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5}}}}]}:{type:"line",from:{data:a.title},properties:{update:{x:{scale:"x",field:b.names[a.x]},y:{scale:"y",field:b.names[a.y]},stroke:{value:a.markColor},strokeWidth:{value:2},strokeOpacity:{value:1}},hover:{strokeOpacity:{value:.5}}}}}function getTopoJson(a,b){var c,d=a.width,e=a.height,f=a.charts[0].mapType,g="mercator";"usa"==f?(d=a.width-160,e=a.height-130,c=a.height+270,g="albersUsa"):"europe"==f?(d=(a.width/2+100)/2,e=a.height+150,c=a.height+50):(c=a.width/640*120,d=a.width/2+10,e=a.height/2+40);var h=a.geoCodesUrl,i={name:"geoData",url:h,format:{type:"topojson",feature:"units"},transform:[{type:"geopath",value:"data",scale:c,translate:[d,e],projection:g},{type:"lookup",keys:["id"],on:a.title,onKey:b.names[a.x],as:["zipped"],"default":{v:null,country:"No data"}}]};return i}function getMapMark(a,b){var c=[{name:"map",type:"path",from:{data:"geoData"},properties:{enter:{path:{field:"layout_path"}},update:{fill:{rule:[{predicate:{name:"isNotNull",id:{field:"zipped.v"}},scale:"color",field:"zipped.v"},{value:a.mapColor}]}},hover:{fill:{value:"#989898"}}}},{type:"group",from:{data:a.title,transform:[{type:"filter",test:"datum."+b.names[a.x]+" == tooltipSignal.datum."+b.names[a.x]}]},properties:{update:{x:{signal:"tooltipSignal.x",offset:-5},y:{signal:"tooltipSignal.y",offset:20},width:{value:100},height:{value:20},fill:{value:a.tooltip.color}}},marks:[{type:"text",properties:{update:{x:{value:6},y:{value:14},text:{template:"{{tooltipSignal.datum.unitName}} {{tooltipSignal.datum.v}}"},fill:{value:"black"}}}}]}];return c}function getMapSignals(){var a=[{name:"tooltipSignal",init:{expr:"{x: 0, y: 0, datum: {} }"},streams:[{type:"@map:mouseover",expr:"{x: eventX(), y: eventY(), datum: eventItem().datum.zipped}"},{type:"@map:mouseout",expr:"{x: 0, y: 0, datum: {} }"}]}];return a}function getMapPredicates(){var a={name:"isNotNull",type:"!=",operands:[{value:null},{arg:"id"}]};return a}function getMapLegends(a,b){var c={fill:"color",title:b.names[a.y],properties:{gradient:{stroke:{value:"transparent"}},title:{fontSize:{value:14}},legend:{x:{value:0},y:{value:a.height-40}}}};return c}function loadGeoMapCodes(a){var b,c=new XMLHttpRequest;return c.overrideMimeType("application/json"),c.open("GET",a,!1),c.onreadystatechange=function(){4==c.readyState&&"200"==c.status&&(b=JSON.parse(c.responseText))},c.send(null),b}function getMapCode(a,b,c){if("world"==b||"europe"==b)for(d=0;d"),$("#wrapper").append("
"),$tip=$("#tip"),$tip.empty();var i=g.datum,j="";for(var k in i)if(i.hasOwnProperty(k))if(void 0!=f){for(var l=0;l"+f[l]+" ("+k+"):"+i[k]+"";break}}else e.names[d.x]==k&&(j+="X ("+k+"):"+i[k]+"
"),e.names[d.y]==k&&(j+="Y ("+k+"):"+i[k]+"
");$tip.append(j);var n=h.width,o=h.height,p=$('.marks[style*="width"]');p.length>0&&(n=parseFloat($(".marks")[0].style.width),o=parseFloat($(".marks")[0].style.height));var q,r=$tip.width(),s=$tip.height(),t=g.bounds.x2+d.padding.left+r,u=o-g.bounds.y2-d.padding.top+s,v=g.bounds.y2+d.padding.top-s;q=t>n?g.bounds.x2+d.padding.left-r:g.bounds.x2+d.padding.left,u>o&&(v=g.bounds.y2+d.padding.top),$tip.css({left:q,top:v}).show()}else $("#wrapper #tip").length&&$tip.remove(),$(a).closest("#wrapper").length&&$(a).unwrap()})}function createTooltip(a){document.getElementById(a.replace("#","")).innerHTML=document.getElementById(a.replace("#","")).innerHTML+"
"}function bindTooltip(a,b,c,d){b.on("mouseover",function(b,e){if(null!=e&&e.mark.marktype==c.tooltip.type){var f=document.getElementById(a.replace("#","")+"-tooltip"),g="";if(null!=e.datum[d.names[c.x]]){var h;if(null==c.tooltip.content){if("time"==d.types[c.x]){var i=d3.time.format(c.dateFormat);h=i(new Date(parseInt(e.datum[d.names[c.x]])))}else h=e.datum[d.names[c.x]];g+=""+d.names[c.x]+" : "+h+""+d.names[c.y]+" : "+e.datum[d.names[c.y]]+""+c.tooltip.content[j]+" : "+h+"=this.config.maxLength){for(var f=[],g=d.length-e,h=g;h=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g-1&&(h=!0,f.splice(j,1)),h||f.splice(f.length-1,1)}else this.view.data(this.config.title).insert([a[i]]),this.view.update()}var k,l=function(a){return a[b]==k};for(i=0;i=this.config.maxLength){for(var e=[],f=c.length-d,g=f;g"+c+"
";document.getElementById(a).innerHTML=d,this.view=b},number.prototype.insert=function(a){document.getElementById(this.view).innerHTML=a[a.length-1][this.metadata.names[this.config.x]]};var scatter=function(a,b){this.metadata=a[0].metadata;var c=[];this.spec={},b=checkConfig(b,this.metadata),this.config=b,a[0].name=b.title;var d={name:"x",type:this.metadata.types[b.x],range:"width",zero:b.zero,domain:{data:b.title,field:this.metadata.names[b.x]}},e={name:"y",type:this.metadata.types[b.y],range:"height",zero:b.zero,domain:{data:b.title,field:this.metadata.names[b.y]}},f={name:"size",type:"linear",range:[0,576],domain:{data:b.title,field:this.metadata.names[b.size]}},g={name:"color",type:this.metadata.types[b.color],range:b.colorScale,domain:{data:b.title,field:this.metadata.names[b.color]}},h=[d,e,f,g],i=getXYAxes(b,"x","x","y","y");c.push(getScatterMark(b,this.metadata)),this.spec.width=b.width,this.spec.height=b.height,this.spec.axes=i,this.spec.data=a,this.spec.scales=h,this.spec.padding=b.padding,this.spec.marks=c};scatter.prototype.draw=function(a,b){var c=function(c){if(this.config.tooltip.enabled?(createTooltip(a),this.view=c({el:a}).renderer(this.config.renderer).update(),bindTooltip(a,this.view,this.config,this.metadata)):this.view=c({el:a}).renderer(this.config.renderer).update(),null!=b)for(var d=0;d=this.config.maxLength){for(var f=[],g=d.length-e,h=g;h-1&&(j=!0,g.splice(k,1)),j||g.splice(g.length-1,1)}else this.view.data(this.config.title).insert([a[i]]),this.view.update()}var l,m=function(a){return a[b]==l};for(i=0;ib.maxLength){var k=d3.select("tbody").selectAll("tr").data().slice(d3.select("tbody").selectAll("tr").data().length-b.maxLength,b.maxLength);d3.select("tbody").selectAll("tr").data(k,function(a){return a}).remove()}};var extend=function(a,b){var c,d={};for(c in a)Object.prototype.hasOwnProperty.call(a,c)&&(d[c]=a[c]);for(c in b)Object.prototype.hasOwnProperty.call(b,c)&&(d[c]=b[c]);return d},bar=function(a,b){this.metadata=a[0].metadata;var c=[],d=[];this.spec={};var e,f,g,h,i,j,k=[];if(b=checkConfig(b,this.metadata),this.config=b,a[0].name=b.title,"left"==b.orientation?(g="height",h="width",i="y",j="x"):(g="width",h="height",i="x",j="y"),-1!=b.color){var l="Legend";"table"!=b.title&&(l=b.title),-1==b.colorDomain&&(b.colorDomain={data:b.title,field:this.metadata.names[b.color]});var m={name:"color",type:"ordinal",domain:b.colorDomain,range:b.colorScale};if(d.push(m),"stack"==b.mode){var n={name:"stack",source:b.title,transform:[{type:"aggregate",groupby:[this.metadata.names[b.x]],summarize:[{field:this.metadata.names[b.y],ops:["sum"]}]}]};a.push(n),e="sum_"+this.metadata.names[b.y],f="stack"}else e=this.metadata.names[b.y],f=b.title;this.config.legend&&(this.spec.legends=getLegend(this.config))}else e=this.metadata.names[b.y],f=b.title;var o={name:"x",type:"ordinal",range:g,domain:{data:b.title,field:this.metadata.names[b.x]}};"group"==b.mode&&(o.padding=.2);var p={name:"y",type:this.metadata.types[b.y],range:h,domain:{data:f,field:e}};d.push(o),d.push(p);var 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n.getMonth()}),fc.months=fc.month.range,fc.months.utc=fc.month.utc.range;var Wl=[1e3,5e3,15e3,3e4,6e4,3e5,9e5,18e5,36e5,108e5,216e5,432e5,864e5,1728e5,6048e5,2592e6,7776e6,31536e6],Jl=[[fc.second,1],[fc.second,5],[fc.second,15],[fc.second,30],[fc.minute,1],[fc.minute,5],[fc.minute,15],[fc.minute,30],[fc.hour,1],[fc.hour,3],[fc.hour,6],[fc.hour,12],[fc.day,1],[fc.day,2],[fc.week,1],[fc.month,1],[fc.month,3],[fc.year,1]],Gl=Xl.multi([[".%L",function(n){return n.getMilliseconds()}],[":%S",function(n){return n.getSeconds()}],["%I:%M",function(n){return n.getMinutes()}],["%I %p",function(n){return n.getHours()}],["%a %d",function(n){return n.getDay()&&1!=n.getDate()}],["%b %d",function(n){return 1!=n.getDate()}],["%B",function(n){return n.getMonth()}],["%Y",Ne]]),Kl={range:function(n,t,e){return ta.range(Math.ceil(n/e)*e,+t,e).map(Ko)},floor:Et,ceil:Et};Jl.year=fc.year,fc.scale=function(){return Go(ta.scale.linear(),Jl,Gl)};var Ql=Jl.map(function(n){return[n[0].utc,n[1]]}),ns=$l.multi([[".%L",function(n){return n.getUTCMilliseconds()}],[":%S",function(n){return n.getUTCSeconds()}],["%I:%M",function(n){return n.getUTCMinutes()}],["%I %p",function(n){return n.getUTCHours()}],["%a %d",function(n){return n.getUTCDay()&&1!=n.getUTCDate()}],["%b %d",function(n){return 1!=n.getUTCDate()}],["%B",function(n){return n.getUTCMonth()}],["%Y",Ne]]);Ql.year=fc.year.utc,fc.scale.utc=function(){return Go(ta.scale.linear(),Ql,ns)},ta.text=At(function(n){return n.responseText}),ta.json=function(n,t){return Nt(n,"application/json",Qo,t)},ta.html=function(n,t){return Nt(n,"text/html",na,t)},ta.xml=At(function(n){return n.responseXML}),"function"==typeof define&&define.amd?define(ta):"object"==typeof module&&module.exports&&(module.exports=ta),this.d3=ta}();
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diff --git a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/dagre-d3.js b/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/dagre-d3.js
deleted file mode 100755
index aed4090dbc..0000000000
--- a/components/analytics/iot-analytics/org.wso2.carbon.device.mgt.cdmf.analytics/src/main/resources/carbonapps/GadgetCommons_1.0.0/commons/js/dagre-d3.js
+++ /dev/null
@@ -1,17572 +0,0 @@
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.dagreD3 = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o 0;
-}
-
-},{}],14:[function(require,module,exports){
-module.exports = intersectNode;
-
-function intersectNode(node, point) {
- return node.intersect(point);
-}
-
-},{}],15:[function(require,module,exports){
-var intersectLine = require("./intersect-line");
-
-module.exports = intersectPolygon;
-
-/*
- * Returns the point ({x, y}) at which the point argument intersects with the
- * node argument assuming that it has the shape specified by polygon.
- */
-function intersectPolygon(node, polyPoints, point) {
- var x1 = node.x;
- var y1 = node.y;
-
- var intersections = [];
-
- var minX = Number.POSITIVE_INFINITY,
- minY = Number.POSITIVE_INFINITY;
- polyPoints.forEach(function(entry) {
- minX = Math.min(minX, entry.x);
- minY = Math.min(minY, entry.y);
- });
-
- var left = x1 - node.width / 2 - minX;
- var top = y1 - node.height / 2 - minY;
-
- for (var i = 0; i < polyPoints.length; i++) {
- var p1 = polyPoints[i];
- var p2 = polyPoints[i < polyPoints.length - 1 ? i + 1 : 0];
- var intersect = intersectLine(node, point,
- {x: left + p1.x, y: top + p1.y}, {x: left + p2.x, y: top + p2.y});
- if (intersect) {
- intersections.push(intersect);
- }
- }
-
- if (!intersections.length) {
- console.log("NO INTERSECTION FOUND, RETURN NODE CENTER", node);
- return node;
- }
-
- if (intersections.length > 1) {
- // More intersections, find the one nearest to edge end point
- intersections.sort(function(p, q) {
- var pdx = p.x - point.x,
- pdy = p.y - point.y,
- distp = Math.sqrt(pdx * pdx + pdy * pdy),
-
- qdx = q.x - point.x,
- qdy = q.y - point.y,
- distq = Math.sqrt(qdx * qdx + qdy * qdy);
-
- return (distp < distq) ? -1 : (distp === distq ? 0 : 1);
- });
- }
- return intersections[0];
-}
-
-},{"./intersect-line":13}],16:[function(require,module,exports){
-module.exports = intersectRect;
-
-function intersectRect(node, point) {
- var x = node.x;
- var y = node.y;
-
- // Rectangle intersection algorithm from:
- // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
- var dx = point.x - x;
- var dy = point.y - y;
- var w = node.width / 2;
- var h = node.height / 2;
-
- var sx, sy;
- if (Math.abs(dy) * w > Math.abs(dx) * h) {
- // Intersection is top or bottom of rect.
- if (dy < 0) {
- h = -h;
- }
- sx = dy === 0 ? 0 : h * dx / dy;
- sy = h;
- } else {
- // Intersection is left or right of rect.
- if (dx < 0) {
- w = -w;
- }
- sx = w;
- sy = dx === 0 ? 0 : w * dy / dx;
- }
-
- return {x: x + sx, y: y + sy};
-}
-
-},{}],17:[function(require,module,exports){
-var util = require("../util");
-
-module.exports = addHtmlLabel;
-
-function addHtmlLabel(root, node) {
- var fo = root
- .append("foreignObject")
- .attr("width", "100000");
-
- var div = fo
- .append("xhtml:div");
- div.attr("xmlns", "http://www.w3.org/1999/xhtml");
-
- var label = node.label;
- switch(typeof label) {
- case "function":
- div.insert(label);
- break;
- case "object":
- // Currently we assume this is a DOM object.
- div.insert(function() { return label; });
- break;
- default: div.html(label);
- }
-
- util.applyStyle(div, node.labelStyle);
- div.style("display", "inline-block");
- // Fix for firefox
- div.style("white-space", "nowrap");
-
- var client = div[0][0].getBoundingClientRect();
- fo
- .attr("width", client.width)
- .attr("height", client.height);
-
- return fo;
-}
-
-},{"../util":27}],18:[function(require,module,exports){
-var addTextLabel = require("./add-text-label"),
- addHtmlLabel = require("./add-html-label"),
- addSVGLabel = require("./add-svg-label");
-
-module.exports = addLabel;
-
-function addLabel(root, node, location) {
- var label = node.label;
- var labelSvg = root.append("g");
-
- // Allow the label to be a string, a function that returns a DOM element, or
- // a DOM element itself.
- if (node.labelType === "svg") {
- addSVGLabel(labelSvg, node);
- } else if (typeof label !== "string" || node.labelType === "html") {
- addHtmlLabel(labelSvg, node);
- } else {
- addTextLabel(labelSvg, node);
- }
-
- var labelBBox = labelSvg.node().getBBox();
- var y;
- switch(location) {
- case "top":
- y = (-node.height / 2);
- break;
- case "bottom":
- y = (node.height / 2) - labelBBox.height;
- break;
- default:
- y = (-labelBBox.height / 2);
- }
- labelSvg.attr("transform",
- "translate(" + (-labelBBox.width / 2) + "," + y + ")");
-
- return labelSvg;
-}
-
-},{"./add-html-label":17,"./add-svg-label":19,"./add-text-label":20}],19:[function(require,module,exports){
-var util = require("../util");
-
-module.exports = addSVGLabel;
-
-function addSVGLabel(root, node) {
- var domNode = root;
-
- domNode.node().appendChild(node.label);
-
- util.applyStyle(domNode, node.labelStyle);
-
- return domNode;
-}
-
-},{"../util":27}],20:[function(require,module,exports){
-var util = require("../util");
-
-module.exports = addTextLabel;
-
-/*
- * Attaches a text label to the specified root. Handles escape sequences.
- */
-function addTextLabel(root, node) {
- var domNode = root.append("text");
-
- var lines = processEscapeSequences(node.label).split("\n");
- for (var i = 0; i < lines.length; i++) {
- domNode
- .append("tspan")
- .attr("xml:space", "preserve")
- .attr("dy", "1em")
- .attr("x", "1")
- .text(lines[i]);
- }
-
- util.applyStyle(domNode, node.labelStyle);
-
- return domNode;
-}
-
-function processEscapeSequences(text) {
- var newText = "",
- escaped = false,
- ch;
- for (var i = 0; i < text.length; ++i) {
- ch = text[i];
- if (escaped) {
- switch(ch) {
- case "n": newText += "\n"; break;
- default: newText += ch;
- }
- escaped = false;
- } else if (ch === "\\") {
- escaped = true;
- } else {
- newText += ch;
- }
- }
- return newText;
-}
-
-},{"../util":27}],21:[function(require,module,exports){
-/* global window */
-
-var lodash;
-
-if (require) {
- try {
- lodash = require("lodash");
- } catch (e) {}
-}
-
-if (!lodash) {
- lodash = window._;
-}
-
-module.exports = lodash;
-
-},{"lodash":79}],22:[function(require,module,exports){
-"use strict";
-
-var util = require("./util"),
- d3 = require("./d3");
-
-module.exports = positionClusters;
-
-function positionClusters(selection, g) {
- var created = selection.filter(function() { return !d3.select(this).classed("update"); });
-
- function translate(v) {
- var node = g.node(v);
- return "translate(" + node.x + "," + node.y + ")";
- }
-
- created.attr("transform", translate);
-
- util.applyTransition(selection, g)
- .style("opacity", 1)
- .attr("transform", translate);
-
- util.applyTransition(created.selectAll("rect"), g)
- .attr("width", function(v) { return g.node(v).width; })
- .attr("height", function(v) { return g.node(v).height; })
- .attr("x", function(v) {
- var node = g.node(v);
- return -node.width / 2;
- })
- .attr("y", function(v) {
- var node = g.node(v);
- return -node.height / 2;
- });
-
-}
-
-},{"./d3":7,"./util":27}],23:[function(require,module,exports){
-"use strict";
-
-var util = require("./util"),
- d3 = require("./d3"),
- _ = require("./lodash");
-
-module.exports = positionEdgeLabels;
-
-function positionEdgeLabels(selection, g) {
- var created = selection.filter(function() { return !d3.select(this).classed("update"); });
-
- function translate(e) {
- var edge = g.edge(e);
- return _.has(edge, "x") ? "translate(" + edge.x + "," + edge.y + ")" : "";
- }
-
- created.attr("transform", translate);
-
- util.applyTransition(selection, g)
- .style("opacity", 1)
- .attr("transform", translate);
-}
-
-},{"./d3":7,"./lodash":21,"./util":27}],24:[function(require,module,exports){
-"use strict";
-
-var util = require("./util"),
- d3 = require("./d3");
-
-module.exports = positionNodes;
-
-function positionNodes(selection, g) {
- var created = selection.filter(function() { return !d3.select(this).classed("update"); });
-
- function translate(v) {
- var node = g.node(v);
- return "translate(" + node.x + "," + node.y + ")";
- }
-
- created.attr("transform", translate);
-
- util.applyTransition(selection, g)
- .style("opacity", 1)
- .attr("transform", translate);
-}
-
-},{"./d3":7,"./util":27}],25:[function(require,module,exports){
-var _ = require("./lodash"),
- layout = require("./dagre").layout;
-
-module.exports = render;
-
-// This design is based on http://bost.ocks.org/mike/chart/.
-function render() {
- var createNodes = require("./create-nodes"),
- createClusters = require("./create-clusters"),
- createEdgeLabels = require("./create-edge-labels"),
- createEdgePaths = require("./create-edge-paths"),
- positionNodes = require("./position-nodes"),
- positionEdgeLabels = require("./position-edge-labels"),
- positionClusters = require("./position-clusters"),
- shapes = require("./shapes"),
- arrows = require("./arrows");
-
- var fn = function(svg, g) {
- preProcessGraph(g);
-
- var outputGroup = createOrSelectGroup(svg, "output"),
- clustersGroup = createOrSelectGroup(outputGroup, "clusters"),
- edgePathsGroup = createOrSelectGroup(outputGroup, "edgePaths"),
- edgeLabels = createEdgeLabels(createOrSelectGroup(outputGroup, "edgeLabels"), g),
- nodes = createNodes(createOrSelectGroup(outputGroup, "nodes"), g, shapes);
-
- layout(g);
-
- positionNodes(nodes, g);
- positionEdgeLabels(edgeLabels, g);
- createEdgePaths(edgePathsGroup, g, arrows);
-
- var clusters = createClusters(clustersGroup, g);
- positionClusters(clusters, g);
-
- postProcessGraph(g);
- };
-
- fn.createNodes = function(value) {
- if (!arguments.length) return createNodes;
- createNodes = value;
- return fn;
- };
-
- fn.createClusters = function(value) {
- if (!arguments.length) return createClusters;
- createClusters = value;
- return fn;
- };
-
- fn.createEdgeLabels = function(value) {
- if (!arguments.length) return createEdgeLabels;
- createEdgeLabels = value;
- return fn;
- };
-
- fn.createEdgePaths = function(value) {
- if (!arguments.length) return createEdgePaths;
- createEdgePaths = value;
- return fn;
- };
-
- fn.shapes = function(value) {
- if (!arguments.length) return shapes;
- shapes = value;
- return fn;
- };
-
- fn.arrows = function(value) {
- if (!arguments.length) return arrows;
- arrows = value;
- return fn;
- };
-
- return fn;
-}
-
-var NODE_DEFAULT_ATTRS = {
- paddingLeft: 10,
- paddingRight: 10,
- paddingTop: 10,
- paddingBottom: 10,
- rx: 0,
- ry: 0,
- shape: "rect"
-};
-
-var EDGE_DEFAULT_ATTRS = {
- arrowhead: "normal",
- lineInterpolate: "linear"
-};
-
-function preProcessGraph(g) {
- g.nodes().forEach(function(v) {
- var node = g.node(v);
- if (!_.has(node, "label") && !g.children(v).length) { node.label = v; }
-
- if (_.has(node, "paddingX")) {
- _.defaults(node, {
- paddingLeft: node.paddingX,
- paddingRight: node.paddingX
- });
- }
-
- if (_.has(node, "paddingY")) {
- _.defaults(node, {
- paddingTop: node.paddingY,
- paddingBottom: node.paddingY
- });
- }
-
- if (_.has(node, "padding")) {
- _.defaults(node, {
- paddingLeft: node.padding,
- paddingRight: node.padding,
- paddingTop: node.padding,
- paddingBottom: node.padding
- });
- }
-
- _.defaults(node, NODE_DEFAULT_ATTRS);
-
- _.each(["paddingLeft", "paddingRight", "paddingTop", "paddingBottom"], function(k) {
- node[k] = Number(node[k]);
- });
-
- // Save dimensions for restore during post-processing
- if (_.has(node, "width")) { node._prevWidth = node.width; }
- if (_.has(node, "height")) { node._prevHeight = node.height; }
- });
-
- g.edges().forEach(function(e) {
- var edge = g.edge(e);
- if (!_.has(edge, "label")) { edge.label = ""; }
- _.defaults(edge, EDGE_DEFAULT_ATTRS);
- });
-}
-
-function postProcessGraph(g) {
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
-
- // Restore original dimensions
- if (_.has(node, "_prevWidth")) {
- node.width = node._prevWidth;
- } else {
- delete node.width;
- }
-
- if (_.has(node, "_prevHeight")) {
- node.height = node._prevHeight;
- } else {
- delete node.height;
- }
-
- delete node._prevWidth;
- delete node._prevHeight;
- });
-}
-
-function createOrSelectGroup(root, name) {
- var selection = root.select("g." + name);
- if (selection.empty()) {
- selection = root.append("g").attr("class", name);
- }
- return selection;
-}
-
-},{"./arrows":2,"./create-clusters":3,"./create-edge-labels":4,"./create-edge-paths":5,"./create-nodes":6,"./dagre":8,"./lodash":21,"./position-clusters":22,"./position-edge-labels":23,"./position-nodes":24,"./shapes":26}],26:[function(require,module,exports){
-"use strict";
-
-var intersectRect = require("./intersect/intersect-rect"),
- intersectEllipse = require("./intersect/intersect-ellipse"),
- intersectCircle = require("./intersect/intersect-circle"),
- intersectPolygon = require("./intersect/intersect-polygon");
-
-module.exports = {
- rect: rect,
- ellipse: ellipse,
- circle: circle,
- diamond: diamond
-};
-
-function rect(parent, bbox, node) {
- var shapeSvg = parent.insert("rect", ":first-child")
- .attr("rx", node.rx)
- .attr("ry", node.ry)
- .attr("x", -bbox.width / 2)
- .attr("y", -bbox.height / 2)
- .attr("width", bbox.width)
- .attr("height", bbox.height);
-
- node.intersect = function(point) {
- return intersectRect(node, point);
- };
-
- return shapeSvg;
-}
-
-function ellipse(parent, bbox, node) {
- var rx = bbox.width / 2,
- ry = bbox.height / 2,
- shapeSvg = parent.insert("ellipse", ":first-child")
- .attr("x", -bbox.width / 2)
- .attr("y", -bbox.height / 2)
- .attr("rx", rx)
- .attr("ry", ry);
-
- node.intersect = function(point) {
- return intersectEllipse(node, rx, ry, point);
- };
-
- return shapeSvg;
-}
-
-function circle(parent, bbox, node) {
- var r = Math.max(bbox.width, bbox.height) / 2,
- shapeSvg = parent.insert("circle", ":first-child")
- .attr("x", -bbox.width / 2)
- .attr("y", -bbox.height / 2)
- .attr("r", r);
-
- node.intersect = function(point) {
- return intersectCircle(node, r, point);
- };
-
- return shapeSvg;
-}
-
-// Circumscribe an ellipse for the bounding box with a diamond shape. I derived
-// the function to calculate the diamond shape from:
-// http://mathforum.org/kb/message.jspa?messageID=3750236
-function diamond(parent, bbox, node) {
- var w = (bbox.width * Math.SQRT2) / 2,
- h = (bbox.height * Math.SQRT2) / 2,
- points = [
- { x: 0, y: -h },
- { x: -w, y: 0 },
- { x: 0, y: h },
- { x: w, y: 0 }
- ],
- shapeSvg = parent.insert("polygon", ":first-child")
- .attr("points", points.map(function(p) { return p.x + "," + p.y; }).join(" "));
-
- node.intersect = function(p) {
- return intersectPolygon(node, points, p);
- };
-
- return shapeSvg;
-}
-
-},{"./intersect/intersect-circle":11,"./intersect/intersect-ellipse":12,"./intersect/intersect-polygon":15,"./intersect/intersect-rect":16}],27:[function(require,module,exports){
-var _ = require("./lodash");
-
-// Public utility functions
-module.exports = {
- isSubgraph: isSubgraph,
- edgeToId: edgeToId,
- applyStyle: applyStyle,
- applyClass: applyClass,
- applyTransition: applyTransition
-};
-
-/*
- * Returns true if the specified node in the graph is a subgraph node. A
- * subgraph node is one that contains other nodes.
- */
-function isSubgraph(g, v) {
- return !!g.children(v).length;
-}
-
-function edgeToId(e) {
- return escapeId(e.v) + ":" + escapeId(e.w) + ":" + escapeId(e.name);
-}
-
-var ID_DELIM = /:/g;
-function escapeId(str) {
- return str ? String(str).replace(ID_DELIM, "\\:") : "";
-}
-
-function applyStyle(dom, styleFn) {
- if (styleFn) {
- dom.attr("style", styleFn);
- }
-}
-
-function applyClass(dom, classFn, otherClasses) {
- if (classFn) {
- dom
- .attr("class", classFn)
- .attr("class", otherClasses + " " + dom.attr("class"));
- }
-}
-
-function applyTransition(selection, g) {
- var graph = g.graph();
-
- if (_.isPlainObject(graph)) {
- var transition = graph.transition;
- if (_.isFunction(transition)) {
- return transition(selection);
- }
- }
-
- return selection;
-}
-
-},{"./lodash":21}],28:[function(require,module,exports){
-module.exports = "0.4.17";
-
-},{}],29:[function(require,module,exports){
-/*
-Copyright (c) 2012-2014 Chris Pettitt
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-module.exports = {
- graphlib: require("./lib/graphlib"),
-
- layout: require("./lib/layout"),
- debug: require("./lib/debug"),
- util: {
- time: require("./lib/util").time,
- notime: require("./lib/util").notime
- },
- version: require("./lib/version")
-};
-
-},{"./lib/debug":34,"./lib/graphlib":35,"./lib/layout":37,"./lib/util":57,"./lib/version":58}],30:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash"),
- greedyFAS = require("./greedy-fas");
-
-module.exports = {
- run: run,
- undo: undo
-};
-
-function run(g) {
- var fas = (g.graph().acyclicer === "greedy"
- ? greedyFAS(g, weightFn(g))
- : dfsFAS(g));
- _.each(fas, function(e) {
- var label = g.edge(e);
- g.removeEdge(e);
- label.forwardName = e.name;
- label.reversed = true;
- g.setEdge(e.w, e.v, label, _.uniqueId("rev"));
- });
-
- function weightFn(g) {
- return function(e) {
- return g.edge(e).weight;
- };
- }
-}
-
-function dfsFAS(g) {
- var fas = [],
- stack = {},
- visited = {};
-
- function dfs(v) {
- if (_.has(visited, v)) {
- return;
- }
- visited[v] = true;
- stack[v] = true;
- _.each(g.outEdges(v), function(e) {
- if (_.has(stack, e.w)) {
- fas.push(e);
- } else {
- dfs(e.w);
- }
- });
- delete stack[v];
- }
-
- _.each(g.nodes(), dfs);
- return fas;
-}
-
-function undo(g) {
- _.each(g.edges(), function(e) {
- var label = g.edge(e);
- if (label.reversed) {
- g.removeEdge(e);
-
- var forwardName = label.forwardName;
- delete label.reversed;
- delete label.forwardName;
- g.setEdge(e.w, e.v, label, forwardName);
- }
- });
-}
-
-},{"./greedy-fas":36,"./lodash":38}],31:[function(require,module,exports){
-var _ = require("./lodash"),
- util = require("./util");
-
-module.exports = addBorderSegments;
-
-function addBorderSegments(g) {
- function dfs(v) {
- var children = g.children(v),
- node = g.node(v);
- if (children.length) {
- _.each(children, dfs);
- }
-
- if (_.has(node, "minRank")) {
- node.borderLeft = [];
- node.borderRight = [];
- for (var rank = node.minRank, maxRank = node.maxRank + 1;
- rank < maxRank;
- ++rank) {
- addBorderNode(g, "borderLeft", "_bl", v, node, rank);
- addBorderNode(g, "borderRight", "_br", v, node, rank);
- }
- }
- }
-
- _.each(g.children(), dfs);
-}
-
-function addBorderNode(g, prop, prefix, sg, sgNode, rank) {
- var label = { width: 0, height: 0, rank: rank, borderType: prop },
- prev = sgNode[prop][rank - 1],
- curr = util.addDummyNode(g, "border", label, prefix);
- sgNode[prop][rank] = curr;
- g.setParent(curr, sg);
- if (prev) {
- g.setEdge(prev, curr, { weight: 1 });
- }
-}
-
-},{"./lodash":38,"./util":57}],32:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash");
-
-module.exports = {
- adjust: adjust,
- undo: undo
-};
-
-function adjust(g) {
- var rankDir = g.graph().rankdir.toLowerCase();
- if (rankDir === "lr" || rankDir === "rl") {
- swapWidthHeight(g);
- }
-}
-
-function undo(g) {
- var rankDir = g.graph().rankdir.toLowerCase();
- if (rankDir === "bt" || rankDir === "rl") {
- reverseY(g);
- }
-
- if (rankDir === "lr" || rankDir === "rl") {
- swapXY(g);
- swapWidthHeight(g);
- }
-}
-
-function swapWidthHeight(g) {
- _.each(g.nodes(), function(v) { swapWidthHeightOne(g.node(v)); });
- _.each(g.edges(), function(e) { swapWidthHeightOne(g.edge(e)); });
-}
-
-function swapWidthHeightOne(attrs) {
- var w = attrs.width;
- attrs.width = attrs.height;
- attrs.height = w;
-}
-
-function reverseY(g) {
- _.each(g.nodes(), function(v) { reverseYOne(g.node(v)); });
-
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- _.each(edge.points, reverseYOne);
- if (_.has(edge, "y")) {
- reverseYOne(edge);
- }
- });
-}
-
-function reverseYOne(attrs) {
- attrs.y = -attrs.y;
-}
-
-function swapXY(g) {
- _.each(g.nodes(), function(v) { swapXYOne(g.node(v)); });
-
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- _.each(edge.points, swapXYOne);
- if (_.has(edge, "x")) {
- swapXYOne(edge);
- }
- });
-}
-
-function swapXYOne(attrs) {
- var x = attrs.x;
- attrs.x = attrs.y;
- attrs.y = x;
-}
-
-},{"./lodash":38}],33:[function(require,module,exports){
-/*
- * Simple doubly linked list implementation derived from Cormen, et al.,
- * "Introduction to Algorithms".
- */
-
-module.exports = List;
-
-function List() {
- var sentinel = {};
- sentinel._next = sentinel._prev = sentinel;
- this._sentinel = sentinel;
-}
-
-List.prototype.dequeue = function() {
- var sentinel = this._sentinel,
- entry = sentinel._prev;
- if (entry !== sentinel) {
- unlink(entry);
- return entry;
- }
-};
-
-List.prototype.enqueue = function(entry) {
- var sentinel = this._sentinel;
- if (entry._prev && entry._next) {
- unlink(entry);
- }
- entry._next = sentinel._next;
- sentinel._next._prev = entry;
- sentinel._next = entry;
- entry._prev = sentinel;
-};
-
-List.prototype.toString = function() {
- var strs = [],
- sentinel = this._sentinel,
- curr = sentinel._prev;
- while (curr !== sentinel) {
- strs.push(JSON.stringify(curr, filterOutLinks));
- curr = curr._prev;
- }
- return "[" + strs.join(", ") + "]";
-};
-
-function unlink(entry) {
- entry._prev._next = entry._next;
- entry._next._prev = entry._prev;
- delete entry._next;
- delete entry._prev;
-}
-
-function filterOutLinks(k, v) {
- if (k !== "_next" && k !== "_prev") {
- return v;
- }
-}
-
-},{}],34:[function(require,module,exports){
-var _ = require("./lodash"),
- util = require("./util"),
- Graph = require("./graphlib").Graph;
-
-module.exports = {
- debugOrdering: debugOrdering
-};
-
-/* istanbul ignore next */
-function debugOrdering(g) {
- var layerMatrix = util.buildLayerMatrix(g);
-
- var h = new Graph({ compound: true, multigraph: true }).setGraph({});
-
- _.each(g.nodes(), function(v) {
- h.setNode(v, { label: v });
- h.setParent(v, "layer" + g.node(v).rank);
- });
-
- _.each(g.edges(), function(e) {
- h.setEdge(e.v, e.w, {}, e.name);
- });
-
- _.each(layerMatrix, function(layer, i) {
- var layerV = "layer" + i;
- h.setNode(layerV, { rank: "same" });
- _.reduce(layer, function(u, v) {
- h.setEdge(u, v, { style: "invis" });
- return v;
- });
- });
-
- return h;
-}
-
-},{"./graphlib":35,"./lodash":38,"./util":57}],35:[function(require,module,exports){
-arguments[4][9][0].apply(exports,arguments)
-},{"dup":9,"graphlib":59}],36:[function(require,module,exports){
-var _ = require("./lodash"),
- Graph = require("./graphlib").Graph,
- List = require("./data/list");
-
-/*
- * A greedy heuristic for finding a feedback arc set for a graph. A feedback
- * arc set is a set of edges that can be removed to make a graph acyclic.
- * The algorithm comes from: P. Eades, X. Lin, and W. F. Smyth, "A fast and
- * effective heuristic for the feedback arc set problem." This implementation
- * adjusts that from the paper to allow for weighted edges.
- */
-module.exports = greedyFAS;
-
-var DEFAULT_WEIGHT_FN = _.constant(1);
-
-function greedyFAS(g, weightFn) {
- if (g.nodeCount() <= 1) {
- return [];
- }
- var state = buildState(g, weightFn || DEFAULT_WEIGHT_FN);
- var results = doGreedyFAS(state.graph, state.buckets, state.zeroIdx);
-
- // Expand multi-edges
- return _.flatten(_.map(results, function(e) {
- return g.outEdges(e.v, e.w);
- }), true);
-}
-
-function doGreedyFAS(g, buckets, zeroIdx) {
- var results = [],
- sources = buckets[buckets.length - 1],
- sinks = buckets[0];
-
- var entry;
- while (g.nodeCount()) {
- while ((entry = sinks.dequeue())) { removeNode(g, buckets, zeroIdx, entry); }
- while ((entry = sources.dequeue())) { removeNode(g, buckets, zeroIdx, entry); }
- if (g.nodeCount()) {
- for (var i = buckets.length - 2; i > 0; --i) {
- entry = buckets[i].dequeue();
- if (entry) {
- results = results.concat(removeNode(g, buckets, zeroIdx, entry, true));
- break;
- }
- }
- }
- }
-
- return results;
-}
-
-function removeNode(g, buckets, zeroIdx, entry, collectPredecessors) {
- var results = collectPredecessors ? [] : undefined;
-
- _.each(g.inEdges(entry.v), function(edge) {
- var weight = g.edge(edge),
- uEntry = g.node(edge.v);
-
- if (collectPredecessors) {
- results.push({ v: edge.v, w: edge.w });
- }
-
- uEntry.out -= weight;
- assignBucket(buckets, zeroIdx, uEntry);
- });
-
- _.each(g.outEdges(entry.v), function(edge) {
- var weight = g.edge(edge),
- w = edge.w,
- wEntry = g.node(w);
- wEntry["in"] -= weight;
- assignBucket(buckets, zeroIdx, wEntry);
- });
-
- g.removeNode(entry.v);
-
- return results;
-}
-
-function buildState(g, weightFn) {
- var fasGraph = new Graph(),
- maxIn = 0,
- maxOut = 0;
-
- _.each(g.nodes(), function(v) {
- fasGraph.setNode(v, { v: v, "in": 0, out: 0 });
- });
-
- // Aggregate weights on nodes, but also sum the weights across multi-edges
- // into a single edge for the fasGraph.
- _.each(g.edges(), function(e) {
- var prevWeight = fasGraph.edge(e.v, e.w) || 0,
- weight = weightFn(e),
- edgeWeight = prevWeight + weight;
- fasGraph.setEdge(e.v, e.w, edgeWeight);
- maxOut = Math.max(maxOut, fasGraph.node(e.v).out += weight);
- maxIn = Math.max(maxIn, fasGraph.node(e.w)["in"] += weight);
- });
-
- var buckets = _.range(maxOut + maxIn + 3).map(function() { return new List(); });
- var zeroIdx = maxIn + 1;
-
- _.each(fasGraph.nodes(), function(v) {
- assignBucket(buckets, zeroIdx, fasGraph.node(v));
- });
-
- return { graph: fasGraph, buckets: buckets, zeroIdx: zeroIdx };
-}
-
-function assignBucket(buckets, zeroIdx, entry) {
- if (!entry.out) {
- buckets[0].enqueue(entry);
- } else if (!entry["in"]) {
- buckets[buckets.length - 1].enqueue(entry);
- } else {
- buckets[entry.out - entry["in"] + zeroIdx].enqueue(entry);
- }
-}
-
-},{"./data/list":33,"./graphlib":35,"./lodash":38}],37:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash"),
- acyclic = require("./acyclic"),
- normalize = require("./normalize"),
- rank = require("./rank"),
- normalizeRanks = require("./util").normalizeRanks,
- parentDummyChains = require("./parent-dummy-chains"),
- removeEmptyRanks = require("./util").removeEmptyRanks,
- nestingGraph = require("./nesting-graph"),
- addBorderSegments = require("./add-border-segments"),
- coordinateSystem = require("./coordinate-system"),
- order = require("./order"),
- position = require("./position"),
- util = require("./util"),
- Graph = require("./graphlib").Graph;
-
-module.exports = layout;
-
-function layout(g, opts) {
- var time = opts && opts.debugTiming ? util.time : util.notime;
- time("layout", function() {
- var layoutGraph = time(" buildLayoutGraph",
- function() { return buildLayoutGraph(g); });
- time(" runLayout", function() { runLayout(layoutGraph, time); });
- time(" updateInputGraph", function() { updateInputGraph(g, layoutGraph); });
- });
-}
-
-function runLayout(g, time) {
- time(" makeSpaceForEdgeLabels", function() { makeSpaceForEdgeLabels(g); });
- time(" removeSelfEdges", function() { removeSelfEdges(g); });
- time(" acyclic", function() { acyclic.run(g); });
- time(" nestingGraph.run", function() { nestingGraph.run(g); });
- time(" rank", function() { rank(util.asNonCompoundGraph(g)); });
- time(" injectEdgeLabelProxies", function() { injectEdgeLabelProxies(g); });
- time(" removeEmptyRanks", function() { removeEmptyRanks(g); });
- time(" nestingGraph.cleanup", function() { nestingGraph.cleanup(g); });
- time(" normalizeRanks", function() { normalizeRanks(g); });
- time(" assignRankMinMax", function() { assignRankMinMax(g); });
- time(" removeEdgeLabelProxies", function() { removeEdgeLabelProxies(g); });
- time(" normalize.run", function() { normalize.run(g); });
- time(" parentDummyChains", function() { parentDummyChains(g); });
- time(" addBorderSegments", function() { addBorderSegments(g); });
- time(" order", function() { order(g); });
- time(" insertSelfEdges", function() { insertSelfEdges(g); });
- time(" adjustCoordinateSystem", function() { coordinateSystem.adjust(g); });
- time(" position", function() { position(g); });
- time(" positionSelfEdges", function() { positionSelfEdges(g); });
- time(" removeBorderNodes", function() { removeBorderNodes(g); });
- time(" normalize.undo", function() { normalize.undo(g); });
- time(" fixupEdgeLabelCoords", function() { fixupEdgeLabelCoords(g); });
- time(" undoCoordinateSystem", function() { coordinateSystem.undo(g); });
- time(" translateGraph", function() { translateGraph(g); });
- time(" assignNodeIntersects", function() { assignNodeIntersects(g); });
- time(" reversePoints", function() { reversePointsForReversedEdges(g); });
- time(" acyclic.undo", function() { acyclic.undo(g); });
-}
-
-/*
- * Copies final layout information from the layout graph back to the input
- * graph. This process only copies whitelisted attributes from the layout graph
- * to the input graph, so it serves as a good place to determine what
- * attributes can influence layout.
- */
-function updateInputGraph(inputGraph, layoutGraph) {
- _.each(inputGraph.nodes(), function(v) {
- var inputLabel = inputGraph.node(v),
- layoutLabel = layoutGraph.node(v);
-
- if (inputLabel) {
- inputLabel.x = layoutLabel.x;
- inputLabel.y = layoutLabel.y;
-
- if (layoutGraph.children(v).length) {
- inputLabel.width = layoutLabel.width;
- inputLabel.height = layoutLabel.height;
- }
- }
- });
-
- _.each(inputGraph.edges(), function(e) {
- var inputLabel = inputGraph.edge(e),
- layoutLabel = layoutGraph.edge(e);
-
- inputLabel.points = layoutLabel.points;
- if (_.has(layoutLabel, "x")) {
- inputLabel.x = layoutLabel.x;
- inputLabel.y = layoutLabel.y;
- }
- });
-
- inputGraph.graph().width = layoutGraph.graph().width;
- inputGraph.graph().height = layoutGraph.graph().height;
-}
-
-var graphNumAttrs = ["nodesep", "edgesep", "ranksep", "marginx", "marginy"],
- graphDefaults = { ranksep: 50, edgesep: 20, nodesep: 50, rankdir: "tb" },
- graphAttrs = ["acyclicer", "ranker", "rankdir", "align"],
- nodeNumAttrs = ["width", "height"],
- nodeDefaults = { width: 0, height: 0 },
- edgeNumAttrs = ["minlen", "weight", "width", "height", "labeloffset"],
- edgeDefaults = {
- minlen: 1, weight: 1, width: 0, height: 0,
- labeloffset: 10, labelpos: "r"
- },
- edgeAttrs = ["labelpos"];
-
-/*
- * Constructs a new graph from the input graph, which can be used for layout.
- * This process copies only whitelisted attributes from the input graph to the
- * layout graph. Thus this function serves as a good place to determine what
- * attributes can influence layout.
- */
-function buildLayoutGraph(inputGraph) {
- var g = new Graph({ multigraph: true, compound: true }),
- graph = canonicalize(inputGraph.graph());
-
- g.setGraph(_.merge({},
- graphDefaults,
- selectNumberAttrs(graph, graphNumAttrs),
- _.pick(graph, graphAttrs)));
-
- _.each(inputGraph.nodes(), function(v) {
- var node = canonicalize(inputGraph.node(v));
- g.setNode(v, _.defaults(selectNumberAttrs(node, nodeNumAttrs), nodeDefaults));
- g.setParent(v, inputGraph.parent(v));
- });
-
- _.each(inputGraph.edges(), function(e) {
- var edge = canonicalize(inputGraph.edge(e));
- g.setEdge(e, _.merge({},
- edgeDefaults,
- selectNumberAttrs(edge, edgeNumAttrs),
- _.pick(edge, edgeAttrs)));
- });
-
- return g;
-}
-
-/*
- * This idea comes from the Gansner paper: to account for edge labels in our
- * layout we split each rank in half by doubling minlen and halving ranksep.
- * Then we can place labels at these mid-points between nodes.
- *
- * We also add some minimal padding to the width to push the label for the edge
- * away from the edge itself a bit.
- */
-function makeSpaceForEdgeLabels(g) {
- var graph = g.graph();
- graph.ranksep /= 2;
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- edge.minlen *= 2;
- if (edge.labelpos.toLowerCase() !== "c") {
- if (graph.rankdir === "TB" || graph.rankdir === "BT") {
- edge.width += edge.labeloffset;
- } else {
- edge.height += edge.labeloffset;
- }
- }
- });
-}
-
-/*
- * Creates temporary dummy nodes that capture the rank in which each edge's
- * label is going to, if it has one of non-zero width and height. We do this
- * so that we can safely remove empty ranks while preserving balance for the
- * label's position.
- */
-function injectEdgeLabelProxies(g) {
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- if (edge.width && edge.height) {
- var v = g.node(e.v),
- w = g.node(e.w),
- label = { rank: (w.rank - v.rank) / 2 + v.rank, e: e };
- util.addDummyNode(g, "edge-proxy", label, "_ep");
- }
- });
-}
-
-function assignRankMinMax(g) {
- var maxRank = 0;
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
- if (node.borderTop) {
- node.minRank = g.node(node.borderTop).rank;
- node.maxRank = g.node(node.borderBottom).rank;
- maxRank = _.max(maxRank, node.maxRank);
- }
- });
- g.graph().maxRank = maxRank;
-}
-
-function removeEdgeLabelProxies(g) {
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
- if (node.dummy === "edge-proxy") {
- g.edge(node.e).labelRank = node.rank;
- g.removeNode(v);
- }
- });
-}
-
-function translateGraph(g) {
- var minX = Number.POSITIVE_INFINITY,
- maxX = 0,
- minY = Number.POSITIVE_INFINITY,
- maxY = 0,
- graphLabel = g.graph(),
- marginX = graphLabel.marginx || 0,
- marginY = graphLabel.marginy || 0;
-
- function getExtremes(attrs) {
- var x = attrs.x,
- y = attrs.y,
- w = attrs.width,
- h = attrs.height;
- minX = Math.min(minX, x - w / 2);
- maxX = Math.max(maxX, x + w / 2);
- minY = Math.min(minY, y - h / 2);
- maxY = Math.max(maxY, y + h / 2);
- }
-
- _.each(g.nodes(), function(v) { getExtremes(g.node(v)); });
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- if (_.has(edge, "x")) {
- getExtremes(edge);
- }
- });
-
- minX -= marginX;
- minY -= marginY;
-
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
- node.x -= minX;
- node.y -= minY;
- });
-
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- _.each(edge.points, function(p) {
- p.x -= minX;
- p.y -= minY;
- });
- if (_.has(edge, "x")) { edge.x -= minX; }
- if (_.has(edge, "y")) { edge.y -= minY; }
- });
-
- graphLabel.width = maxX - minX + marginX;
- graphLabel.height = maxY - minY + marginY;
-}
-
-function assignNodeIntersects(g) {
- _.each(g.edges(), function(e) {
- var edge = g.edge(e),
- nodeV = g.node(e.v),
- nodeW = g.node(e.w),
- p1, p2;
- if (!edge.points) {
- edge.points = [];
- p1 = nodeW;
- p2 = nodeV;
- } else {
- p1 = edge.points[0];
- p2 = edge.points[edge.points.length - 1];
- }
- edge.points.unshift(util.intersectRect(nodeV, p1));
- edge.points.push(util.intersectRect(nodeW, p2));
- });
-}
-
-function fixupEdgeLabelCoords(g) {
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- if (_.has(edge, "x")) {
- if (edge.labelpos === "l" || edge.labelpos === "r") {
- edge.width -= edge.labeloffset;
- }
- switch (edge.labelpos) {
- case "l": edge.x -= edge.width / 2 + edge.labeloffset; break;
- case "r": edge.x += edge.width / 2 + edge.labeloffset; break;
- }
- }
- });
-}
-
-function reversePointsForReversedEdges(g) {
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- if (edge.reversed) {
- edge.points.reverse();
- }
- });
-}
-
-function removeBorderNodes(g) {
- _.each(g.nodes(), function(v) {
- if (g.children(v).length) {
- var node = g.node(v),
- t = g.node(node.borderTop),
- b = g.node(node.borderBottom),
- l = g.node(_.last(node.borderLeft)),
- r = g.node(_.last(node.borderRight));
-
- node.width = Math.abs(r.x - l.x);
- node.height = Math.abs(b.y - t.y);
- node.x = l.x + node.width / 2;
- node.y = t.y + node.height / 2;
- }
- });
-
- _.each(g.nodes(), function(v) {
- if (g.node(v).dummy === "border") {
- g.removeNode(v);
- }
- });
-}
-
-function removeSelfEdges(g) {
- _.each(g.edges(), function(e) {
- if (e.v === e.w) {
- var node = g.node(e.v);
- if (!node.selfEdges) {
- node.selfEdges = [];
- }
- node.selfEdges.push({ e: e, label: g.edge(e) });
- g.removeEdge(e);
- }
- });
-}
-
-function insertSelfEdges(g) {
- var layers = util.buildLayerMatrix(g);
- _.each(layers, function(layer) {
- var orderShift = 0;
- _.each(layer, function(v, i) {
- var node = g.node(v);
- node.order = i + orderShift;
- _.each(node.selfEdges, function(selfEdge) {
- util.addDummyNode(g, "selfedge", {
- width: selfEdge.label.width,
- height: selfEdge.label.height,
- rank: node.rank,
- order: i + (++orderShift),
- e: selfEdge.e,
- label: selfEdge.label
- }, "_se");
- });
- delete node.selfEdges;
- });
- });
-}
-
-function positionSelfEdges(g) {
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
- if (node.dummy === "selfedge") {
- var selfNode = g.node(node.e.v),
- x = selfNode.x + selfNode.width / 2,
- y = selfNode.y,
- dx = node.x - x,
- dy = selfNode.height / 2;
- g.setEdge(node.e, node.label);
- g.removeNode(v);
- node.label.points = [
- { x: x + 2 * dx / 3, y: y - dy },
- { x: x + 5 * dx / 6, y: y - dy },
- { x: x + dx , y: y },
- { x: x + 5 * dx / 6, y: y + dy },
- { x: x + 2 * dx / 3, y: y + dy },
- ];
- node.label.x = node.x;
- node.label.y = node.y;
- }
- });
-}
-
-function selectNumberAttrs(obj, attrs) {
- return _.mapValues(_.pick(obj, attrs), Number);
-}
-
-function canonicalize(attrs) {
- var newAttrs = {};
- _.each(attrs, function(v, k) {
- newAttrs[k.toLowerCase()] = v;
- });
- return newAttrs;
-}
-
-},{"./acyclic":30,"./add-border-segments":31,"./coordinate-system":32,"./graphlib":35,"./lodash":38,"./nesting-graph":39,"./normalize":40,"./order":45,"./parent-dummy-chains":50,"./position":52,"./rank":54,"./util":57}],38:[function(require,module,exports){
-arguments[4][21][0].apply(exports,arguments)
-},{"dup":21,"lodash":79}],39:[function(require,module,exports){
-var _ = require("./lodash"),
- util = require("./util");
-
-module.exports = {
- run: run,
- cleanup: cleanup
-};
-
-/*
- * A nesting graph creates dummy nodes for the tops and bottoms of subgraphs,
- * adds appropriate edges to ensure that all cluster nodes are placed between
- * these boundries, and ensures that the graph is connected.
- *
- * In addition we ensure, through the use of the minlen property, that nodes
- * and subgraph border nodes to not end up on the same rank.
- *
- * Preconditions:
- *
- * 1. Input graph is a DAG
- * 2. Nodes in the input graph has a minlen attribute
- *
- * Postconditions:
- *
- * 1. Input graph is connected.
- * 2. Dummy nodes are added for the tops and bottoms of subgraphs.
- * 3. The minlen attribute for nodes is adjusted to ensure nodes do not
- * get placed on the same rank as subgraph border nodes.
- *
- * The nesting graph idea comes from Sander, "Layout of Compound Directed
- * Graphs."
- */
-function run(g) {
- var root = util.addDummyNode(g, "root", {}, "_root"),
- depths = treeDepths(g),
- height = _.max(depths) - 1,
- nodeSep = 2 * height + 1;
-
- g.graph().nestingRoot = root;
-
- // Multiply minlen by nodeSep to align nodes on non-border ranks.
- _.each(g.edges(), function(e) { g.edge(e).minlen *= nodeSep; });
-
- // Calculate a weight that is sufficient to keep subgraphs vertically compact
- var weight = sumWeights(g) + 1;
-
- // Create border nodes and link them up
- _.each(g.children(), function(child) {
- dfs(g, root, nodeSep, weight, height, depths, child);
- });
-
- // Save the multiplier for node layers for later removal of empty border
- // layers.
- g.graph().nodeRankFactor = nodeSep;
-}
-
-function dfs(g, root, nodeSep, weight, height, depths, v) {
- var children = g.children(v);
- if (!children.length) {
- if (v !== root) {
- g.setEdge(root, v, { weight: 0, minlen: nodeSep });
- }
- return;
- }
-
- var top = util.addBorderNode(g, "_bt"),
- bottom = util.addBorderNode(g, "_bb"),
- label = g.node(v);
-
- g.setParent(top, v);
- label.borderTop = top;
- g.setParent(bottom, v);
- label.borderBottom = bottom;
-
- _.each(children, function(child) {
- dfs(g, root, nodeSep, weight, height, depths, child);
-
- var childNode = g.node(child),
- childTop = childNode.borderTop ? childNode.borderTop : child,
- childBottom = childNode.borderBottom ? childNode.borderBottom : child,
- thisWeight = childNode.borderTop ? weight : 2 * weight,
- minlen = childTop !== childBottom ? 1 : height - depths[v] + 1;
-
- g.setEdge(top, childTop, {
- weight: thisWeight,
- minlen: minlen,
- nestingEdge: true
- });
-
- g.setEdge(childBottom, bottom, {
- weight: thisWeight,
- minlen: minlen,
- nestingEdge: true
- });
- });
-
- if (!g.parent(v)) {
- g.setEdge(root, top, { weight: 0, minlen: height + depths[v] });
- }
-}
-
-function treeDepths(g) {
- var depths = {};
- function dfs(v, depth) {
- var children = g.children(v);
- if (children && children.length) {
- _.each(children, function(child) {
- dfs(child, depth + 1);
- });
- }
- depths[v] = depth;
- }
- _.each(g.children(), function(v) { dfs(v, 1); });
- return depths;
-}
-
-function sumWeights(g) {
- return _.reduce(g.edges(), function(acc, e) {
- return acc + g.edge(e).weight;
- }, 0);
-}
-
-function cleanup(g) {
- var graphLabel = g.graph();
- g.removeNode(graphLabel.nestingRoot);
- delete graphLabel.nestingRoot;
- _.each(g.edges(), function(e) {
- var edge = g.edge(e);
- if (edge.nestingEdge) {
- g.removeEdge(e);
- }
- });
-}
-
-},{"./lodash":38,"./util":57}],40:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash"),
- util = require("./util");
-
-module.exports = {
- run: run,
- undo: undo
-};
-
-/*
- * Breaks any long edges in the graph into short segments that span 1 layer
- * each. This operation is undoable with the denormalize function.
- *
- * Pre-conditions:
- *
- * 1. The input graph is a DAG.
- * 2. Each node in the graph has a "rank" property.
- *
- * Post-condition:
- *
- * 1. All edges in the graph have a length of 1.
- * 2. Dummy nodes are added where edges have been split into segments.
- * 3. The graph is augmented with a "dummyChains" attribute which contains
- * the first dummy in each chain of dummy nodes produced.
- */
-function run(g) {
- g.graph().dummyChains = [];
- _.each(g.edges(), function(edge) { normalizeEdge(g, edge); });
-}
-
-function normalizeEdge(g, e) {
- var v = e.v,
- vRank = g.node(v).rank,
- w = e.w,
- wRank = g.node(w).rank,
- name = e.name,
- edgeLabel = g.edge(e),
- labelRank = edgeLabel.labelRank;
-
- if (wRank === vRank + 1) return;
-
- g.removeEdge(e);
-
- var dummy, attrs, i;
- for (i = 0, ++vRank; vRank < wRank; ++i, ++vRank) {
- edgeLabel.points = [];
- attrs = {
- width: 0, height: 0,
- edgeLabel: edgeLabel, edgeObj: e,
- rank: vRank
- };
- dummy = util.addDummyNode(g, "edge", attrs, "_d");
- if (vRank === labelRank) {
- attrs.width = edgeLabel.width;
- attrs.height = edgeLabel.height;
- attrs.dummy = "edge-label";
- attrs.labelpos = edgeLabel.labelpos;
- }
- g.setEdge(v, dummy, { weight: edgeLabel.weight }, name);
- if (i === 0) {
- g.graph().dummyChains.push(dummy);
- }
- v = dummy;
- }
-
- g.setEdge(v, w, { weight: edgeLabel.weight }, name);
-}
-
-function undo(g) {
- _.each(g.graph().dummyChains, function(v) {
- var node = g.node(v),
- origLabel = node.edgeLabel,
- w;
- g.setEdge(node.edgeObj, origLabel);
- while (node.dummy) {
- w = g.successors(v)[0];
- g.removeNode(v);
- origLabel.points.push({ x: node.x, y: node.y });
- if (node.dummy === "edge-label") {
- origLabel.x = node.x;
- origLabel.y = node.y;
- origLabel.width = node.width;
- origLabel.height = node.height;
- }
- v = w;
- node = g.node(v);
- }
- });
-}
-
-},{"./lodash":38,"./util":57}],41:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = addSubgraphConstraints;
-
-function addSubgraphConstraints(g, cg, vs) {
- var prev = {},
- rootPrev;
-
- _.each(vs, function(v) {
- var child = g.parent(v),
- parent,
- prevChild;
- while (child) {
- parent = g.parent(child);
- if (parent) {
- prevChild = prev[parent];
- prev[parent] = child;
- } else {
- prevChild = rootPrev;
- rootPrev = child;
- }
- if (prevChild && prevChild !== child) {
- cg.setEdge(prevChild, child);
- return;
- }
- child = parent;
- }
- });
-
- /*
- function dfs(v) {
- var children = v ? g.children(v) : g.children();
- if (children.length) {
- var min = Number.POSITIVE_INFINITY,
- subgraphs = [];
- _.each(children, function(child) {
- var childMin = dfs(child);
- if (g.children(child).length) {
- subgraphs.push({ v: child, order: childMin });
- }
- min = Math.min(min, childMin);
- });
- _.reduce(_.sortBy(subgraphs, "order"), function(prev, curr) {
- cg.setEdge(prev.v, curr.v);
- return curr;
- });
- return min;
- }
- return g.node(v).order;
- }
- dfs(undefined);
- */
-}
-
-},{"../lodash":38}],42:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = barycenter;
-
-function barycenter(g, movable) {
- return _.map(movable, function(v) {
- var inV = g.inEdges(v);
- if (!inV.length) {
- return { v: v };
- } else {
- var result = _.reduce(inV, function(acc, e) {
- var edge = g.edge(e),
- nodeU = g.node(e.v);
- return {
- sum: acc.sum + (edge.weight * nodeU.order),
- weight: acc.weight + edge.weight
- };
- }, { sum: 0, weight: 0 });
-
- return {
- v: v,
- barycenter: result.sum / result.weight,
- weight: result.weight
- };
- }
- });
-}
-
-
-},{"../lodash":38}],43:[function(require,module,exports){
-var _ = require("../lodash"),
- Graph = require("../graphlib").Graph;
-
-module.exports = buildLayerGraph;
-
-/*
- * Constructs a graph that can be used to sort a layer of nodes. The graph will
- * contain all base and subgraph nodes from the request layer in their original
- * hierarchy and any edges that are incident on these nodes and are of the type
- * requested by the "relationship" parameter.
- *
- * Nodes from the requested rank that do not have parents are assigned a root
- * node in the output graph, which is set in the root graph attribute. This
- * makes it easy to walk the hierarchy of movable nodes during ordering.
- *
- * Pre-conditions:
- *
- * 1. Input graph is a DAG
- * 2. Base nodes in the input graph have a rank attribute
- * 3. Subgraph nodes in the input graph has minRank and maxRank attributes
- * 4. Edges have an assigned weight
- *
- * Post-conditions:
- *
- * 1. Output graph has all nodes in the movable rank with preserved
- * hierarchy.
- * 2. Root nodes in the movable layer are made children of the node
- * indicated by the root attribute of the graph.
- * 3. Non-movable nodes incident on movable nodes, selected by the
- * relationship parameter, are included in the graph (without hierarchy).
- * 4. Edges incident on movable nodes, selected by the relationship
- * parameter, are added to the output graph.
- * 5. The weights for copied edges are aggregated as need, since the output
- * graph is not a multi-graph.
- */
-function buildLayerGraph(g, rank, relationship) {
- var root = createRootNode(g),
- result = new Graph({ compound: true }).setGraph({ root: root })
- .setDefaultNodeLabel(function(v) { return g.node(v); });
-
- _.each(g.nodes(), function(v) {
- var node = g.node(v),
- parent = g.parent(v);
-
- if (node.rank === rank || node.minRank <= rank && rank <= node.maxRank) {
- result.setNode(v);
- result.setParent(v, parent || root);
-
- // This assumes we have only short edges!
- _.each(g[relationship](v), function(e) {
- var u = e.v === v ? e.w : e.v,
- edge = result.edge(u, v),
- weight = !_.isUndefined(edge) ? edge.weight : 0;
- result.setEdge(u, v, { weight: g.edge(e).weight + weight });
- });
-
- if (_.has(node, "minRank")) {
- result.setNode(v, {
- borderLeft: node.borderLeft[rank],
- borderRight: node.borderRight[rank]
- });
- }
- }
- });
-
- return result;
-}
-
-function createRootNode(g) {
- var v;
- while (g.hasNode((v = _.uniqueId("_root"))));
- return v;
-}
-
-},{"../graphlib":35,"../lodash":38}],44:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash");
-
-module.exports = crossCount;
-
-/*
- * A function that takes a layering (an array of layers, each with an array of
- * ordererd nodes) and a graph and returns a weighted crossing count.
- *
- * Pre-conditions:
- *
- * 1. Input graph must be simple (not a multigraph), directed, and include
- * only simple edges.
- * 2. Edges in the input graph must have assigned weights.
- *
- * Post-conditions:
- *
- * 1. The graph and layering matrix are left unchanged.
- *
- * This algorithm is derived from Barth, et al., "Bilayer Cross Counting."
- */
-function crossCount(g, layering) {
- var cc = 0;
- for (var i = 1; i < layering.length; ++i) {
- cc += twoLayerCrossCount(g, layering[i-1], layering[i]);
- }
- return cc;
-}
-
-function twoLayerCrossCount(g, northLayer, southLayer) {
- // Sort all of the edges between the north and south layers by their position
- // in the north layer and then the south. Map these edges to the position of
- // their head in the south layer.
- var southPos = _.zipObject(southLayer,
- _.map(southLayer, function (v, i) { return i; }));
- var southEntries = _.flatten(_.map(northLayer, function(v) {
- return _.chain(g.outEdges(v))
- .map(function(e) {
- return { pos: southPos[e.w], weight: g.edge(e).weight };
- })
- .sortBy("pos")
- .value();
- }), true);
-
- // Build the accumulator tree
- var firstIndex = 1;
- while (firstIndex < southLayer.length) firstIndex <<= 1;
- var treeSize = 2 * firstIndex - 1;
- firstIndex -= 1;
- var tree = _.map(new Array(treeSize), function() { return 0; });
-
- // Calculate the weighted crossings
- var cc = 0;
- _.each(southEntries.forEach(function(entry) {
- var index = entry.pos + firstIndex;
- tree[index] += entry.weight;
- var weightSum = 0;
- while (index > 0) {
- if (index % 2) {
- weightSum += tree[index + 1];
- }
- index = (index - 1) >> 1;
- tree[index] += entry.weight;
- }
- cc += entry.weight * weightSum;
- }));
-
- return cc;
-}
-
-},{"../lodash":38}],45:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash"),
- initOrder = require("./init-order"),
- crossCount = require("./cross-count"),
- sortSubgraph = require("./sort-subgraph"),
- buildLayerGraph = require("./build-layer-graph"),
- addSubgraphConstraints = require("./add-subgraph-constraints"),
- Graph = require("../graphlib").Graph,
- util = require("../util");
-
-module.exports = order;
-
-/*
- * Applies heuristics to minimize edge crossings in the graph and sets the best
- * order solution as an order attribute on each node.
- *
- * Pre-conditions:
- *
- * 1. Graph must be DAG
- * 2. Graph nodes must be objects with a "rank" attribute
- * 3. Graph edges must have the "weight" attribute
- *
- * Post-conditions:
- *
- * 1. Graph nodes will have an "order" attribute based on the results of the
- * algorithm.
- */
-function order(g) {
- var maxRank = util.maxRank(g),
- downLayerGraphs = buildLayerGraphs(g, _.range(1, maxRank + 1), "inEdges"),
- upLayerGraphs = buildLayerGraphs(g, _.range(maxRank - 1, -1, -1), "outEdges");
-
- var layering = initOrder(g);
- assignOrder(g, layering);
-
- var bestCC = Number.POSITIVE_INFINITY,
- best;
-
- for (var i = 0, lastBest = 0; lastBest < 4; ++i, ++lastBest) {
- sweepLayerGraphs(i % 2 ? downLayerGraphs : upLayerGraphs, i % 4 >= 2);
-
- layering = util.buildLayerMatrix(g);
- var cc = crossCount(g, layering);
- if (cc < bestCC) {
- lastBest = 0;
- best = _.cloneDeep(layering);
- bestCC = cc;
- }
- }
-
- assignOrder(g, best);
-}
-
-function buildLayerGraphs(g, ranks, relationship) {
- return _.map(ranks, function(rank) {
- return buildLayerGraph(g, rank, relationship);
- });
-}
-
-function sweepLayerGraphs(layerGraphs, biasRight) {
- var cg = new Graph();
- _.each(layerGraphs, function(lg) {
- var root = lg.graph().root;
- var sorted = sortSubgraph(lg, root, cg, biasRight);
- _.each(sorted.vs, function(v, i) {
- lg.node(v).order = i;
- });
- addSubgraphConstraints(lg, cg, sorted.vs);
- });
-}
-
-function assignOrder(g, layering) {
- _.each(layering, function(layer) {
- _.each(layer, function(v, i) {
- g.node(v).order = i;
- });
- });
-}
-
-},{"../graphlib":35,"../lodash":38,"../util":57,"./add-subgraph-constraints":41,"./build-layer-graph":43,"./cross-count":44,"./init-order":46,"./sort-subgraph":48}],46:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash");
-
-module.exports = initOrder;
-
-/*
- * Assigns an initial order value for each node by performing a DFS search
- * starting from nodes in the first rank. Nodes are assigned an order in their
- * rank as they are first visited.
- *
- * This approach comes from Gansner, et al., "A Technique for Drawing Directed
- * Graphs."
- *
- * Returns a layering matrix with an array per layer and each layer sorted by
- * the order of its nodes.
- */
-function initOrder(g) {
- var visited = {},
- simpleNodes = _.filter(g.nodes(), function(v) {
- return !g.children(v).length;
- }),
- maxRank = _.max(_.map(simpleNodes, function(v) { return g.node(v).rank; })),
- layers = _.map(_.range(maxRank + 1), function() { return []; });
-
- function dfs(v) {
- if (_.has(visited, v)) return;
- visited[v] = true;
- var node = g.node(v);
- layers[node.rank].push(v);
- _.each(g.successors(v), dfs);
- }
-
- var orderedVs = _.sortBy(simpleNodes, function(v) { return g.node(v).rank; });
- _.each(orderedVs, dfs);
-
- return layers;
-}
-
-},{"../lodash":38}],47:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash");
-
-module.exports = resolveConflicts;
-
-/*
- * Given a list of entries of the form {v, barycenter, weight} and a
- * constraint graph this function will resolve any conflicts between the
- * constraint graph and the barycenters for the entries. If the barycenters for
- * an entry would violate a constraint in the constraint graph then we coalesce
- * the nodes in the conflict into a new node that respects the contraint and
- * aggregates barycenter and weight information.
- *
- * This implementation is based on the description in Forster, "A Fast and
- * Simple Hueristic for Constrained Two-Level Crossing Reduction," thought it
- * differs in some specific details.
- *
- * Pre-conditions:
- *
- * 1. Each entry has the form {v, barycenter, weight}, or if the node has
- * no barycenter, then {v}.
- *
- * Returns:
- *
- * A new list of entries of the form {vs, i, barycenter, weight}. The list
- * `vs` may either be a singleton or it may be an aggregation of nodes
- * ordered such that they do not violate constraints from the constraint
- * graph. The property `i` is the lowest original index of any of the
- * elements in `vs`.
- */
-function resolveConflicts(entries, cg) {
- var mappedEntries = {};
- _.each(entries, function(entry, i) {
- var tmp = mappedEntries[entry.v] = {
- indegree: 0,
- "in": [],
- out: [],
- vs: [entry.v],
- i: i
- };
- if (!_.isUndefined(entry.barycenter)) {
- tmp.barycenter = entry.barycenter;
- tmp.weight = entry.weight;
- }
- });
-
- _.each(cg.edges(), function(e) {
- var entryV = mappedEntries[e.v],
- entryW = mappedEntries[e.w];
- if (!_.isUndefined(entryV) && !_.isUndefined(entryW)) {
- entryW.indegree++;
- entryV.out.push(mappedEntries[e.w]);
- }
- });
-
- var sourceSet = _.filter(mappedEntries, function(entry) {
- return !entry.indegree;
- });
-
- return doResolveConflicts(sourceSet);
-}
-
-function doResolveConflicts(sourceSet) {
- var entries = [];
-
- function handleIn(vEntry) {
- return function(uEntry) {
- if (uEntry.merged) {
- return;
- }
- if (_.isUndefined(uEntry.barycenter) ||
- _.isUndefined(vEntry.barycenter) ||
- uEntry.barycenter >= vEntry.barycenter) {
- mergeEntries(vEntry, uEntry);
- }
- };
- }
-
- function handleOut(vEntry) {
- return function(wEntry) {
- wEntry["in"].push(vEntry);
- if (--wEntry.indegree === 0) {
- sourceSet.push(wEntry);
- }
- };
- }
-
- while (sourceSet.length) {
- var entry = sourceSet.pop();
- entries.push(entry);
- _.each(entry["in"].reverse(), handleIn(entry));
- _.each(entry.out, handleOut(entry));
- }
-
- return _.chain(entries)
- .filter(function(entry) { return !entry.merged; })
- .map(function(entry) {
- return _.pick(entry, ["vs", "i", "barycenter", "weight"]);
- })
- .value();
-}
-
-function mergeEntries(target, source) {
- var sum = 0,
- weight = 0;
-
- if (target.weight) {
- sum += target.barycenter * target.weight;
- weight += target.weight;
- }
-
- if (source.weight) {
- sum += source.barycenter * source.weight;
- weight += source.weight;
- }
-
- target.vs = source.vs.concat(target.vs);
- target.barycenter = sum / weight;
- target.weight = weight;
- target.i = Math.min(source.i, target.i);
- source.merged = true;
-}
-
-},{"../lodash":38}],48:[function(require,module,exports){
-var _ = require("../lodash"),
- barycenter = require("./barycenter"),
- resolveConflicts = require("./resolve-conflicts"),
- sort = require("./sort");
-
-module.exports = sortSubgraph;
-
-function sortSubgraph(g, v, cg, biasRight) {
- var movable = g.children(v),
- node = g.node(v),
- bl = node ? node.borderLeft : undefined,
- br = node ? node.borderRight: undefined,
- subgraphs = {};
-
- if (bl) {
- movable = _.filter(movable, function(w) {
- return w !== bl && w !== br;
- });
- }
-
- var barycenters = barycenter(g, movable);
- _.each(barycenters, function(entry) {
- if (g.children(entry.v).length) {
- var subgraphResult = sortSubgraph(g, entry.v, cg, biasRight);
- subgraphs[entry.v] = subgraphResult;
- if (_.has(subgraphResult, "barycenter")) {
- mergeBarycenters(entry, subgraphResult);
- }
- }
- });
-
- var entries = resolveConflicts(barycenters, cg);
- expandSubgraphs(entries, subgraphs);
-
- var result = sort(entries, biasRight);
-
- if (bl) {
- result.vs = _.flatten([bl, result.vs, br], true);
- if (g.predecessors(bl).length) {
- var blPred = g.node(g.predecessors(bl)[0]),
- brPred = g.node(g.predecessors(br)[0]);
- if (!_.has(result, "barycenter")) {
- result.barycenter = 0;
- result.weight = 0;
- }
- result.barycenter = (result.barycenter * result.weight +
- blPred.order + brPred.order) / (result.weight + 2);
- result.weight += 2;
- }
- }
-
- return result;
-}
-
-function expandSubgraphs(entries, subgraphs) {
- _.each(entries, function(entry) {
- entry.vs = _.flatten(entry.vs.map(function(v) {
- if (subgraphs[v]) {
- return subgraphs[v].vs;
- }
- return v;
- }), true);
- });
-}
-
-function mergeBarycenters(target, other) {
- if (!_.isUndefined(target.barycenter)) {
- target.barycenter = (target.barycenter * target.weight +
- other.barycenter * other.weight) /
- (target.weight + other.weight);
- target.weight += other.weight;
- } else {
- target.barycenter = other.barycenter;
- target.weight = other.weight;
- }
-}
-
-},{"../lodash":38,"./barycenter":42,"./resolve-conflicts":47,"./sort":49}],49:[function(require,module,exports){
-var _ = require("../lodash"),
- util = require("../util");
-
-module.exports = sort;
-
-function sort(entries, biasRight) {
- var parts = util.partition(entries, function(entry) {
- return _.has(entry, "barycenter");
- });
- var sortable = parts.lhs,
- unsortable = _.sortBy(parts.rhs, function(entry) { return -entry.i; }),
- vs = [],
- sum = 0,
- weight = 0,
- vsIndex = 0;
-
- sortable.sort(compareWithBias(!!biasRight));
-
- vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
-
- _.each(sortable, function (entry) {
- vsIndex += entry.vs.length;
- vs.push(entry.vs);
- sum += entry.barycenter * entry.weight;
- weight += entry.weight;
- vsIndex = consumeUnsortable(vs, unsortable, vsIndex);
- });
-
- var result = { vs: _.flatten(vs, true) };
- if (weight) {
- result.barycenter = sum / weight;
- result.weight = weight;
- }
- return result;
-}
-
-function consumeUnsortable(vs, unsortable, index) {
- var last;
- while (unsortable.length && (last = _.last(unsortable)).i <= index) {
- unsortable.pop();
- vs.push(last.vs);
- index++;
- }
- return index;
-}
-
-function compareWithBias(bias) {
- return function(entryV, entryW) {
- if (entryV.barycenter < entryW.barycenter) {
- return -1;
- } else if (entryV.barycenter > entryW.barycenter) {
- return 1;
- }
-
- return !bias ? entryV.i - entryW.i : entryW.i - entryV.i;
- };
-}
-
-},{"../lodash":38,"../util":57}],50:[function(require,module,exports){
-var _ = require("./lodash");
-
-module.exports = parentDummyChains;
-
-function parentDummyChains(g) {
- var postorderNums = postorder(g);
-
- _.each(g.graph().dummyChains, function(v) {
- var node = g.node(v),
- edgeObj = node.edgeObj,
- pathData = findPath(g, postorderNums, edgeObj.v, edgeObj.w),
- path = pathData.path,
- lca = pathData.lca,
- pathIdx = 0,
- pathV = path[pathIdx],
- ascending = true;
-
- while (v !== edgeObj.w) {
- node = g.node(v);
-
- if (ascending) {
- while ((pathV = path[pathIdx]) !== lca &&
- g.node(pathV).maxRank < node.rank) {
- pathIdx++;
- }
-
- if (pathV === lca) {
- ascending = false;
- }
- }
-
- if (!ascending) {
- while (pathIdx < path.length - 1 &&
- g.node(pathV = path[pathIdx + 1]).minRank <= node.rank) {
- pathIdx++;
- }
- pathV = path[pathIdx];
- }
-
- g.setParent(v, pathV);
- v = g.successors(v)[0];
- }
- });
-}
-
-// Find a path from v to w through the lowest common ancestor (LCA). Return the
-// full path and the LCA.
-function findPath(g, postorderNums, v, w) {
- var vPath = [],
- wPath = [],
- low = Math.min(postorderNums[v].low, postorderNums[w].low),
- lim = Math.max(postorderNums[v].lim, postorderNums[w].lim),
- parent,
- lca;
-
- // Traverse up from v to find the LCA
- parent = v;
- do {
- parent = g.parent(parent);
- vPath.push(parent);
- } while (parent &&
- (postorderNums[parent].low > low || lim > postorderNums[parent].lim));
- lca = parent;
-
- // Traverse from w to LCA
- parent = w;
- while ((parent = g.parent(parent)) !== lca) {
- wPath.push(parent);
- }
-
- return { path: vPath.concat(wPath.reverse()), lca: lca };
-}
-
-function postorder(g) {
- var result = {},
- lim = 0;
-
- function dfs(v) {
- var low = lim;
- _.each(g.children(v), dfs);
- result[v] = { low: low, lim: lim++ };
- }
- _.each(g.children(), dfs);
-
- return result;
-}
-
-},{"./lodash":38}],51:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash"),
- Graph = require("../graphlib").Graph,
- util = require("../util");
-
-/*
- * This module provides coordinate assignment based on Brandes and Köpf, "Fast
- * and Simple Horizontal Coordinate Assignment."
- */
-
-module.exports = {
- positionX: positionX,
- findType1Conflicts: findType1Conflicts,
- findType2Conflicts: findType2Conflicts,
- addConflict: addConflict,
- hasConflict: hasConflict,
- verticalAlignment: verticalAlignment,
- horizontalCompaction: horizontalCompaction,
- alignCoordinates: alignCoordinates,
- findSmallestWidthAlignment: findSmallestWidthAlignment,
- balance: balance
-};
-
-/*
- * Marks all edges in the graph with a type-1 conflict with the "type1Conflict"
- * property. A type-1 conflict is one where a non-inner segment crosses an
- * inner segment. An inner segment is an edge with both incident nodes marked
- * with the "dummy" property.
- *
- * This algorithm scans layer by layer, starting with the second, for type-1
- * conflicts between the current layer and the previous layer. For each layer
- * it scans the nodes from left to right until it reaches one that is incident
- * on an inner segment. It then scans predecessors to determine if they have
- * edges that cross that inner segment. At the end a final scan is done for all
- * nodes on the current rank to see if they cross the last visited inner
- * segment.
- *
- * This algorithm (safely) assumes that a dummy node will only be incident on a
- * single node in the layers being scanned.
- */
-function findType1Conflicts(g, layering) {
- var conflicts = {};
-
- function visitLayer(prevLayer, layer) {
- var
- // last visited node in the previous layer that is incident on an inner
- // segment.
- k0 = 0,
- // Tracks the last node in this layer scanned for crossings with a type-1
- // segment.
- scanPos = 0,
- prevLayerLength = prevLayer.length,
- lastNode = _.last(layer);
-
- _.each(layer, function(v, i) {
- var w = findOtherInnerSegmentNode(g, v),
- k1 = w ? g.node(w).order : prevLayerLength;
-
- if (w || v === lastNode) {
- _.each(layer.slice(scanPos, i +1), function(scanNode) {
- _.each(g.predecessors(scanNode), function(u) {
- var uLabel = g.node(u),
- uPos = uLabel.order;
- if ((uPos < k0 || k1 < uPos) &&
- !(uLabel.dummy && g.node(scanNode).dummy)) {
- addConflict(conflicts, u, scanNode);
- }
- });
- });
- scanPos = i + 1;
- k0 = k1;
- }
- });
-
- return layer;
- }
-
- _.reduce(layering, visitLayer);
- return conflicts;
-}
-
-function findType2Conflicts(g, layering) {
- var conflicts = {};
-
- function scan(south, southPos, southEnd, prevNorthBorder, nextNorthBorder) {
- var v;
- _.each(_.range(southPos, southEnd), function(i) {
- v = south[i];
- if (g.node(v).dummy) {
- _.each(g.predecessors(v), function(u) {
- var uNode = g.node(u);
- if (uNode.dummy &&
- (uNode.order < prevNorthBorder || uNode.order > nextNorthBorder)) {
- addConflict(conflicts, u, v);
- }
- });
- }
- });
- }
-
-
- function visitLayer(north, south) {
- var prevNorthPos = -1,
- nextNorthPos,
- southPos = 0;
-
- _.each(south, function(v, southLookahead) {
- if (g.node(v).dummy === "border") {
- var predecessors = g.predecessors(v);
- if (predecessors.length) {
- nextNorthPos = g.node(predecessors[0]).order;
- scan(south, southPos, southLookahead, prevNorthPos, nextNorthPos);
- southPos = southLookahead;
- prevNorthPos = nextNorthPos;
- }
- }
- scan(south, southPos, south.length, nextNorthPos, north.length);
- });
-
- return south;
- }
-
- _.reduce(layering, visitLayer);
- return conflicts;
-}
-
-function findOtherInnerSegmentNode(g, v) {
- if (g.node(v).dummy) {
- return _.find(g.predecessors(v), function(u) {
- return g.node(u).dummy;
- });
- }
-}
-
-function addConflict(conflicts, v, w) {
- if (v > w) {
- var tmp = v;
- v = w;
- w = tmp;
- }
-
- var conflictsV = conflicts[v];
- if (!conflictsV) {
- conflicts[v] = conflictsV = {};
- }
- conflictsV[w] = true;
-}
-
-function hasConflict(conflicts, v, w) {
- if (v > w) {
- var tmp = v;
- v = w;
- w = tmp;
- }
- return _.has(conflicts[v], w);
-}
-
-/*
- * Try to align nodes into vertical "blocks" where possible. This algorithm
- * attempts to align a node with one of its median neighbors. If the edge
- * connecting a neighbor is a type-1 conflict then we ignore that possibility.
- * If a previous node has already formed a block with a node after the node
- * we're trying to form a block with, we also ignore that possibility - our
- * blocks would be split in that scenario.
- */
-function verticalAlignment(g, layering, conflicts, neighborFn) {
- var root = {},
- align = {},
- pos = {};
-
- // We cache the position here based on the layering because the graph and
- // layering may be out of sync. The layering matrix is manipulated to
- // generate different extreme alignments.
- _.each(layering, function(layer) {
- _.each(layer, function(v, order) {
- root[v] = v;
- align[v] = v;
- pos[v] = order;
- });
- });
-
- _.each(layering, function(layer) {
- var prevIdx = -1;
- _.each(layer, function(v) {
- var ws = neighborFn(v);
- if (ws.length) {
- ws = _.sortBy(ws, function(w) { return pos[w]; });
- var mp = (ws.length - 1) / 2;
- for (var i = Math.floor(mp), il = Math.ceil(mp); i <= il; ++i) {
- var w = ws[i];
- if (align[v] === v &&
- prevIdx < pos[w] &&
- !hasConflict(conflicts, v, w)) {
- align[w] = v;
- align[v] = root[v] = root[w];
- prevIdx = pos[w];
- }
- }
- }
- });
- });
-
- return { root: root, align: align };
-}
-
-function horizontalCompaction(g, layering, root, align, reverseSep) {
- // This portion of the algorithm differs from BK due to a number of problems.
- // Instead of their algorithm we construct a new block graph and do two
- // sweeps. The first sweep places blocks with the smallest possible
- // coordinates. The second sweep removes unused space by moving blocks to the
- // greatest coordinates without violating separation.
- var xs = {},
- blockG = buildBlockGraph(g, layering, root, reverseSep);
-
- // First pass, assign smallest coordinates via DFS
- var visited = {};
- function pass1(v) {
- if (!_.has(visited, v)) {
- visited[v] = true;
- xs[v] = _.reduce(blockG.inEdges(v), function(max, e) {
- pass1(e.v);
- return Math.max(max, xs[e.v] + blockG.edge(e));
- }, 0);
- }
- }
- _.each(blockG.nodes(), pass1);
-
- var borderType = reverseSep ? "borderLeft" : "borderRight";
- function pass2(v) {
- if (visited[v] !== 2) {
- visited[v]++;
- var node = g.node(v);
- var min = _.reduce(blockG.outEdges(v), function(min, e) {
- pass2(e.w);
- return Math.min(min, xs[e.w] - blockG.edge(e));
- }, Number.POSITIVE_INFINITY);
- if (min !== Number.POSITIVE_INFINITY && node.borderType !== borderType) {
- xs[v] = Math.max(xs[v], min);
- }
- }
- }
- _.each(blockG.nodes(), pass2);
-
- // Assign x coordinates to all nodes
- _.each(align, function(v) {
- xs[v] = xs[root[v]];
- });
-
- return xs;
-}
-
-
-function buildBlockGraph(g, layering, root, reverseSep) {
- var blockGraph = new Graph(),
- graphLabel = g.graph(),
- sepFn = sep(graphLabel.nodesep, graphLabel.edgesep, reverseSep);
-
- _.each(layering, function(layer) {
- var u;
- _.each(layer, function(v) {
- var vRoot = root[v];
- blockGraph.setNode(vRoot);
- if (u) {
- var uRoot = root[u],
- prevMax = blockGraph.edge(uRoot, vRoot);
- blockGraph.setEdge(uRoot, vRoot, Math.max(sepFn(g, v, u), prevMax || 0));
- }
- u = v;
- });
- });
-
- return blockGraph;
-}
-
-/*
- * Returns the alignment that has the smallest width of the given alignments.
- */
-function findSmallestWidthAlignment(g, xss) {
- return _.min(xss, function(xs) {
- var min = _.min(xs, function(x, v) { return x - width(g, v) / 2; }),
- max = _.max(xs, function(x, v) { return x + width(g, v) / 2; });
- return max - min;
- });
-}
-
-/*
- * Align the coordinates of each of the layout alignments such that
- * left-biased alignments have their minimum coordinate at the same point as
- * the minimum coordinate of the smallest width alignment and right-biased
- * alignments have their maximum coordinate at the same point as the maximum
- * coordinate of the smallest width alignment.
- */
-function alignCoordinates(xss, alignTo) {
- var alignToMin = _.min(alignTo),
- alignToMax = _.max(alignTo);
-
- _.each(["u", "d"], function(vert) {
- _.each(["l", "r"], function(horiz) {
- var alignment = vert + horiz,
- xs = xss[alignment],
- delta;
- if (xs === alignTo) return;
-
- delta = horiz === "l" ? alignToMin - _.min(xs) : alignToMax - _.max(xs);
-
- if (delta) {
- xss[alignment] = _.mapValues(xs, function(x) { return x + delta; });
- }
- });
- });
-}
-
-function balance(xss, align) {
- return _.mapValues(xss.ul, function(ignore, v) {
- if (align) {
- return xss[align.toLowerCase()][v];
- } else {
- var xs = _.sortBy(_.pluck(xss, v));
- return (xs[1] + xs[2]) / 2;
- }
- });
-}
-
-function positionX(g) {
- var layering = util.buildLayerMatrix(g),
- conflicts = _.merge(findType1Conflicts(g, layering),
- findType2Conflicts(g, layering));
-
- var xss = {},
- adjustedLayering;
- _.each(["u", "d"], function(vert) {
- adjustedLayering = vert === "u" ? layering : _.values(layering).reverse();
- _.each(["l", "r"], function(horiz) {
- if (horiz === "r") {
- adjustedLayering = _.map(adjustedLayering, function(inner) {
- return _.values(inner).reverse();
- });
- }
-
- var neighborFn = _.bind(vert === "u" ? g.predecessors : g.successors, g);
- var align = verticalAlignment(g, adjustedLayering, conflicts, neighborFn);
- var xs = horizontalCompaction(g, adjustedLayering,
- align.root, align.align,
- horiz === "r");
- if (horiz === "r") {
- xs = _.mapValues(xs, function(x) { return -x; });
- }
- xss[vert + horiz] = xs;
- });
- });
-
- var smallestWidth = findSmallestWidthAlignment(g, xss);
- alignCoordinates(xss, smallestWidth);
- return balance(xss, g.graph().align);
-}
-
-function sep(nodeSep, edgeSep, reverseSep) {
- return function(g, v, w) {
- var vLabel = g.node(v),
- wLabel = g.node(w),
- sum = 0,
- delta;
-
- sum += vLabel.width / 2;
- if (_.has(vLabel, "labelpos")) {
- switch (vLabel.labelpos.toLowerCase()) {
- case "l": delta = -vLabel.width / 2; break;
- case "r": delta = vLabel.width / 2; break;
- }
- }
- if (delta) {
- sum += reverseSep ? delta : -delta;
- }
- delta = 0;
-
- sum += (vLabel.dummy ? edgeSep : nodeSep) / 2;
- sum += (wLabel.dummy ? edgeSep : nodeSep) / 2;
-
- sum += wLabel.width / 2;
- if (_.has(wLabel, "labelpos")) {
- switch (wLabel.labelpos.toLowerCase()) {
- case "l": delta = wLabel.width / 2; break;
- case "r": delta = -wLabel.width / 2; break;
- }
- }
- if (delta) {
- sum += reverseSep ? delta : -delta;
- }
- delta = 0;
-
- return sum;
- };
-}
-
-function width(g, v) {
- return g.node(v).width;
-}
-
-},{"../graphlib":35,"../lodash":38,"../util":57}],52:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash"),
- util = require("../util"),
- positionX = require("./bk").positionX;
-
-module.exports = position;
-
-function position(g) {
- g = util.asNonCompoundGraph(g);
-
- positionY(g);
- _.each(positionX(g), function(x, v) {
- g.node(v).x = x;
- });
-}
-
-function positionY(g) {
- var layering = util.buildLayerMatrix(g),
- rankSep = g.graph().ranksep,
- prevY = 0;
- _.each(layering, function(layer) {
- var maxHeight = _.max(_.map(layer, function(v) { return g.node(v).height; }));
- _.each(layer, function(v) {
- g.node(v).y = prevY + maxHeight / 2;
- });
- prevY += maxHeight + rankSep;
- });
-}
-
-
-},{"../lodash":38,"../util":57,"./bk":51}],53:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash"),
- Graph = require("../graphlib").Graph,
- slack = require("./util").slack;
-
-module.exports = feasibleTree;
-
-/*
- * Constructs a spanning tree with tight edges and adjusted the input node's
- * ranks to achieve this. A tight edge is one that is has a length that matches
- * its "minlen" attribute.
- *
- * The basic structure for this function is derived from Gansner, et al., "A
- * Technique for Drawing Directed Graphs."
- *
- * Pre-conditions:
- *
- * 1. Graph must be a DAG.
- * 2. Graph must be connected.
- * 3. Graph must have at least one node.
- * 5. Graph nodes must have been previously assigned a "rank" property that
- * respects the "minlen" property of incident edges.
- * 6. Graph edges must have a "minlen" property.
- *
- * Post-conditions:
- *
- * - Graph nodes will have their rank adjusted to ensure that all edges are
- * tight.
- *
- * Returns a tree (undirected graph) that is constructed using only "tight"
- * edges.
- */
-function feasibleTree(g) {
- var t = new Graph({ directed: false });
-
- // Choose arbitrary node from which to start our tree
- var start = g.nodes()[0],
- size = g.nodeCount();
- t.setNode(start, {});
-
- var edge, delta;
- while (tightTree(t, g) < size) {
- edge = findMinSlackEdge(t, g);
- delta = t.hasNode(edge.v) ? slack(g, edge) : -slack(g, edge);
- shiftRanks(t, g, delta);
- }
-
- return t;
-}
-
-/*
- * Finds a maximal tree of tight edges and returns the number of nodes in the
- * tree.
- */
-function tightTree(t, g) {
- function dfs(v) {
- _.each(g.nodeEdges(v), function(e) {
- var edgeV = e.v,
- w = (v === edgeV) ? e.w : edgeV;
- if (!t.hasNode(w) && !slack(g, e)) {
- t.setNode(w, {});
- t.setEdge(v, w, {});
- dfs(w);
- }
- });
- }
-
- _.each(t.nodes(), dfs);
- return t.nodeCount();
-}
-
-/*
- * Finds the edge with the smallest slack that is incident on tree and returns
- * it.
- */
-function findMinSlackEdge(t, g) {
- return _.min(g.edges(), function(e) {
- if (t.hasNode(e.v) !== t.hasNode(e.w)) {
- return slack(g, e);
- }
- });
-}
-
-function shiftRanks(t, g, delta) {
- _.each(t.nodes(), function(v) {
- g.node(v).rank += delta;
- });
-}
-
-},{"../graphlib":35,"../lodash":38,"./util":56}],54:[function(require,module,exports){
-"use strict";
-
-var rankUtil = require("./util"),
- longestPath = rankUtil.longestPath,
- feasibleTree = require("./feasible-tree"),
- networkSimplex = require("./network-simplex");
-
-module.exports = rank;
-
-/*
- * Assigns a rank to each node in the input graph that respects the "minlen"
- * constraint specified on edges between nodes.
- *
- * This basic structure is derived from Gansner, et al., "A Technique for
- * Drawing Directed Graphs."
- *
- * Pre-conditions:
- *
- * 1. Graph must be a connected DAG
- * 2. Graph nodes must be objects
- * 3. Graph edges must have "weight" and "minlen" attributes
- *
- * Post-conditions:
- *
- * 1. Graph nodes will have a "rank" attribute based on the results of the
- * algorithm. Ranks can start at any index (including negative), we'll
- * fix them up later.
- */
-function rank(g) {
- switch(g.graph().ranker) {
- case "network-simplex": networkSimplexRanker(g); break;
- case "tight-tree": tightTreeRanker(g); break;
- case "longest-path": longestPathRanker(g); break;
- default: networkSimplexRanker(g);
- }
-}
-
-// A fast and simple ranker, but results are far from optimal.
-var longestPathRanker = longestPath;
-
-function tightTreeRanker(g) {
- longestPath(g);
- feasibleTree(g);
-}
-
-function networkSimplexRanker(g) {
- networkSimplex(g);
-}
-
-},{"./feasible-tree":53,"./network-simplex":55,"./util":56}],55:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash"),
- feasibleTree = require("./feasible-tree"),
- slack = require("./util").slack,
- initRank = require("./util").longestPath,
- preorder = require("../graphlib").alg.preorder,
- postorder = require("../graphlib").alg.postorder,
- simplify = require("../util").simplify;
-
-module.exports = networkSimplex;
-
-// Expose some internals for testing purposes
-networkSimplex.initLowLimValues = initLowLimValues;
-networkSimplex.initCutValues = initCutValues;
-networkSimplex.calcCutValue = calcCutValue;
-networkSimplex.leaveEdge = leaveEdge;
-networkSimplex.enterEdge = enterEdge;
-networkSimplex.exchangeEdges = exchangeEdges;
-
-/*
- * The network simplex algorithm assigns ranks to each node in the input graph
- * and iteratively improves the ranking to reduce the length of edges.
- *
- * Preconditions:
- *
- * 1. The input graph must be a DAG.
- * 2. All nodes in the graph must have an object value.
- * 3. All edges in the graph must have "minlen" and "weight" attributes.
- *
- * Postconditions:
- *
- * 1. All nodes in the graph will have an assigned "rank" attribute that has
- * been optimized by the network simplex algorithm. Ranks start at 0.
- *
- *
- * A rough sketch of the algorithm is as follows:
- *
- * 1. Assign initial ranks to each node. We use the longest path algorithm,
- * which assigns ranks to the lowest position possible. In general this
- * leads to very wide bottom ranks and unnecessarily long edges.
- * 2. Construct a feasible tight tree. A tight tree is one such that all
- * edges in the tree have no slack (difference between length of edge
- * and minlen for the edge). This by itself greatly improves the assigned
- * rankings by shorting edges.
- * 3. Iteratively find edges that have negative cut values. Generally a
- * negative cut value indicates that the edge could be removed and a new
- * tree edge could be added to produce a more compact graph.
- *
- * Much of the algorithms here are derived from Gansner, et al., "A Technique
- * for Drawing Directed Graphs." The structure of the file roughly follows the
- * structure of the overall algorithm.
- */
-function networkSimplex(g) {
- g = simplify(g);
- initRank(g);
- var t = feasibleTree(g);
- initLowLimValues(t);
- initCutValues(t, g);
-
- var e, f;
- while ((e = leaveEdge(t))) {
- f = enterEdge(t, g, e);
- exchangeEdges(t, g, e, f);
- }
-}
-
-/*
- * Initializes cut values for all edges in the tree.
- */
-function initCutValues(t, g) {
- var vs = postorder(t, t.nodes());
- vs = vs.slice(0, vs.length - 1);
- _.each(vs, function(v) {
- assignCutValue(t, g, v);
- });
-}
-
-function assignCutValue(t, g, child) {
- var childLab = t.node(child),
- parent = childLab.parent;
- t.edge(child, parent).cutvalue = calcCutValue(t, g, child);
-}
-
-/*
- * Given the tight tree, its graph, and a child in the graph calculate and
- * return the cut value for the edge between the child and its parent.
- */
-function calcCutValue(t, g, child) {
- var childLab = t.node(child),
- parent = childLab.parent,
- // True if the child is on the tail end of the edge in the directed graph
- childIsTail = true,
- // The graph's view of the tree edge we're inspecting
- graphEdge = g.edge(child, parent),
- // The accumulated cut value for the edge between this node and its parent
- cutValue = 0;
-
- if (!graphEdge) {
- childIsTail = false;
- graphEdge = g.edge(parent, child);
- }
-
- cutValue = graphEdge.weight;
-
- _.each(g.nodeEdges(child), function(e) {
- var isOutEdge = e.v === child,
- other = isOutEdge ? e.w : e.v;
-
- if (other !== parent) {
- var pointsToHead = isOutEdge === childIsTail,
- otherWeight = g.edge(e).weight;
-
- cutValue += pointsToHead ? otherWeight : -otherWeight;
- if (isTreeEdge(t, child, other)) {
- var otherCutValue = t.edge(child, other).cutvalue;
- cutValue += pointsToHead ? -otherCutValue : otherCutValue;
- }
- }
- });
-
- return cutValue;
-}
-
-function initLowLimValues(tree, root) {
- if (arguments.length < 2) {
- root = tree.nodes()[0];
- }
- dfsAssignLowLim(tree, {}, 1, root);
-}
-
-function dfsAssignLowLim(tree, visited, nextLim, v, parent) {
- var low = nextLim,
- label = tree.node(v);
-
- visited[v] = true;
- _.each(tree.neighbors(v), function(w) {
- if (!_.has(visited, w)) {
- nextLim = dfsAssignLowLim(tree, visited, nextLim, w, v);
- }
- });
-
- label.low = low;
- label.lim = nextLim++;
- if (parent) {
- label.parent = parent;
- } else {
- // TODO should be able to remove this when we incrementally update low lim
- delete label.parent;
- }
-
- return nextLim;
-}
-
-function leaveEdge(tree) {
- return _.find(tree.edges(), function(e) {
- return tree.edge(e).cutvalue < 0;
- });
-}
-
-function enterEdge(t, g, edge) {
- var v = edge.v,
- w = edge.w;
-
- // For the rest of this function we assume that v is the tail and w is the
- // head, so if we don't have this edge in the graph we should flip it to
- // match the correct orientation.
- if (!g.hasEdge(v, w)) {
- v = edge.w;
- w = edge.v;
- }
-
- var vLabel = t.node(v),
- wLabel = t.node(w),
- tailLabel = vLabel,
- flip = false;
-
- // If the root is in the tail of the edge then we need to flip the logic that
- // checks for the head and tail nodes in the candidates function below.
- if (vLabel.lim > wLabel.lim) {
- tailLabel = wLabel;
- flip = true;
- }
-
- var candidates = _.filter(g.edges(), function(edge) {
- return flip === isDescendant(t, t.node(edge.v), tailLabel) &&
- flip !== isDescendant(t, t.node(edge.w), tailLabel);
- });
-
- return _.min(candidates, function(edge) { return slack(g, edge); });
-}
-
-function exchangeEdges(t, g, e, f) {
- var v = e.v,
- w = e.w;
- t.removeEdge(v, w);
- t.setEdge(f.v, f.w, {});
- initLowLimValues(t);
- initCutValues(t, g);
- updateRanks(t, g);
-}
-
-function updateRanks(t, g) {
- var root = _.find(t.nodes(), function(v) { return !g.node(v).parent; }),
- vs = preorder(t, root);
- vs = vs.slice(1);
- _.each(vs, function(v) {
- var parent = t.node(v).parent,
- edge = g.edge(v, parent),
- flipped = false;
-
- if (!edge) {
- edge = g.edge(parent, v);
- flipped = true;
- }
-
- g.node(v).rank = g.node(parent).rank + (flipped ? edge.minlen : -edge.minlen);
- });
-}
-
-/*
- * Returns true if the edge is in the tree.
- */
-function isTreeEdge(tree, u, v) {
- return tree.hasEdge(u, v);
-}
-
-/*
- * Returns true if the specified node is descendant of the root node per the
- * assigned low and lim attributes in the tree.
- */
-function isDescendant(tree, vLabel, rootLabel) {
- return rootLabel.low <= vLabel.lim && vLabel.lim <= rootLabel.lim;
-}
-
-},{"../graphlib":35,"../lodash":38,"../util":57,"./feasible-tree":53,"./util":56}],56:[function(require,module,exports){
-"use strict";
-
-var _ = require("../lodash");
-
-module.exports = {
- longestPath: longestPath,
- slack: slack
-};
-
-/*
- * Initializes ranks for the input graph using the longest path algorithm. This
- * algorithm scales well and is fast in practice, it yields rather poor
- * solutions. Nodes are pushed to the lowest layer possible, leaving the bottom
- * ranks wide and leaving edges longer than necessary. However, due to its
- * speed, this algorithm is good for getting an initial ranking that can be fed
- * into other algorithms.
- *
- * This algorithm does not normalize layers because it will be used by other
- * algorithms in most cases. If using this algorithm directly, be sure to
- * run normalize at the end.
- *
- * Pre-conditions:
- *
- * 1. Input graph is a DAG.
- * 2. Input graph node labels can be assigned properties.
- *
- * Post-conditions:
- *
- * 1. Each node will be assign an (unnormalized) "rank" property.
- */
-function longestPath(g) {
- var visited = {};
-
- function dfs(v) {
- var label = g.node(v);
- if (_.has(visited, v)) {
- return label.rank;
- }
- visited[v] = true;
-
- var rank = _.min(_.map(g.outEdges(v), function(e) {
- return dfs(e.w) - g.edge(e).minlen;
- }));
-
- if (rank === Number.POSITIVE_INFINITY) {
- rank = 0;
- }
-
- return (label.rank = rank);
- }
-
- _.each(g.sources(), dfs);
-}
-
-/*
- * Returns the amount of slack for the given edge. The slack is defined as the
- * difference between the length of the edge and its minimum length.
- */
-function slack(g, e) {
- return g.node(e.w).rank - g.node(e.v).rank - g.edge(e).minlen;
-}
-
-},{"../lodash":38}],57:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash"),
- Graph = require("./graphlib").Graph;
-
-module.exports = {
- addDummyNode: addDummyNode,
- simplify: simplify,
- asNonCompoundGraph: asNonCompoundGraph,
- successorWeights: successorWeights,
- predecessorWeights: predecessorWeights,
- intersectRect: intersectRect,
- buildLayerMatrix: buildLayerMatrix,
- normalizeRanks: normalizeRanks,
- removeEmptyRanks: removeEmptyRanks,
- addBorderNode: addBorderNode,
- maxRank: maxRank,
- partition: partition,
- time: time,
- notime: notime
-};
-
-/*
- * Adds a dummy node to the graph and return v.
- */
-function addDummyNode(g, type, attrs, name) {
- var v;
- do {
- v = _.uniqueId(name);
- } while (g.hasNode(v));
-
- attrs.dummy = type;
- g.setNode(v, attrs);
- return v;
-}
-
-/*
- * Returns a new graph with only simple edges. Handles aggregation of data
- * associated with multi-edges.
- */
-function simplify(g) {
- var simplified = new Graph().setGraph(g.graph());
- _.each(g.nodes(), function(v) { simplified.setNode(v, g.node(v)); });
- _.each(g.edges(), function(e) {
- var simpleLabel = simplified.edge(e.v, e.w) || { weight: 0, minlen: 1 },
- label = g.edge(e);
- simplified.setEdge(e.v, e.w, {
- weight: simpleLabel.weight + label.weight,
- minlen: Math.max(simpleLabel.minlen, label.minlen)
- });
- });
- return simplified;
-}
-
-function asNonCompoundGraph(g) {
- var simplified = new Graph({ multigraph: g.isMultigraph() }).setGraph(g.graph());
- _.each(g.nodes(), function(v) {
- if (!g.children(v).length) {
- simplified.setNode(v, g.node(v));
- }
- });
- _.each(g.edges(), function(e) {
- simplified.setEdge(e, g.edge(e));
- });
- return simplified;
-}
-
-function successorWeights(g) {
- var weightMap = _.map(g.nodes(), function(v) {
- var sucs = {};
- _.each(g.outEdges(v), function(e) {
- sucs[e.w] = (sucs[e.w] || 0) + g.edge(e).weight;
- });
- return sucs;
- });
- return _.zipObject(g.nodes(), weightMap);
-}
-
-function predecessorWeights(g) {
- var weightMap = _.map(g.nodes(), function(v) {
- var preds = {};
- _.each(g.inEdges(v), function(e) {
- preds[e.v] = (preds[e.v] || 0) + g.edge(e).weight;
- });
- return preds;
- });
- return _.zipObject(g.nodes(), weightMap);
-}
-
-/*
- * Finds where a line starting at point ({x, y}) would intersect a rectangle
- * ({x, y, width, height}) if it were pointing at the rectangle's center.
- */
-function intersectRect(rect, point) {
- var x = rect.x;
- var y = rect.y;
-
- // Rectangle intersection algorithm from:
- // http://math.stackexchange.com/questions/108113/find-edge-between-two-boxes
- var dx = point.x - x;
- var dy = point.y - y;
- var w = rect.width / 2;
- var h = rect.height / 2;
-
- if (!dx && !dy) {
- throw new Error("Not possible to find intersection inside of the rectangle");
- }
-
- var sx, sy;
- if (Math.abs(dy) * w > Math.abs(dx) * h) {
- // Intersection is top or bottom of rect.
- if (dy < 0) {
- h = -h;
- }
- sx = h * dx / dy;
- sy = h;
- } else {
- // Intersection is left or right of rect.
- if (dx < 0) {
- w = -w;
- }
- sx = w;
- sy = w * dy / dx;
- }
-
- return { x: x + sx, y: y + sy };
-}
-
-/*
- * Given a DAG with each node assigned "rank" and "order" properties, this
- * function will produce a matrix with the ids of each node.
- */
-function buildLayerMatrix(g) {
- var layering = _.map(_.range(maxRank(g) + 1), function() { return []; });
- _.each(g.nodes(), function(v) {
- var node = g.node(v),
- rank = node.rank;
- if (!_.isUndefined(rank)) {
- layering[rank][node.order] = v;
- }
- });
- return layering;
-}
-
-/*
- * Adjusts the ranks for all nodes in the graph such that all nodes v have
- * rank(v) >= 0 and at least one node w has rank(w) = 0.
- */
-function normalizeRanks(g) {
- var min = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
- _.each(g.nodes(), function(v) {
- var node = g.node(v);
- if (_.has(node, "rank")) {
- node.rank -= min;
- }
- });
-}
-
-function removeEmptyRanks(g) {
- // Ranks may not start at 0, so we need to offset them
- var offset = _.min(_.map(g.nodes(), function(v) { return g.node(v).rank; }));
-
- var layers = [];
- _.each(g.nodes(), function(v) {
- var rank = g.node(v).rank - offset;
- if (!layers[rank]) {
- layers[rank] = [];
- }
- layers[rank].push(v);
- });
-
- var delta = 0,
- nodeRankFactor = g.graph().nodeRankFactor;
- _.each(layers, function(vs, i) {
- if (_.isUndefined(vs) && i % nodeRankFactor !== 0) {
- --delta;
- } else if (delta) {
- _.each(vs, function(v) { g.node(v).rank += delta; });
- }
- });
-}
-
-function addBorderNode(g, prefix, rank, order) {
- var node = {
- width: 0,
- height: 0
- };
- if (arguments.length >= 4) {
- node.rank = rank;
- node.order = order;
- }
- return addDummyNode(g, "border", node, prefix);
-}
-
-function maxRank(g) {
- return _.max(_.map(g.nodes(), function(v) {
- var rank = g.node(v).rank;
- if (!_.isUndefined(rank)) {
- return rank;
- }
- }));
-}
-
-/*
- * Partition a collection into two groups: `lhs` and `rhs`. If the supplied
- * function returns true for an entry it goes into `lhs`. Otherwise it goes
- * into `rhs.
- */
-function partition(collection, fn) {
- var result = { lhs: [], rhs: [] };
- _.each(collection, function(value) {
- if (fn(value)) {
- result.lhs.push(value);
- } else {
- result.rhs.push(value);
- }
- });
- return result;
-}
-
-/*
- * Returns a new function that wraps `fn` with a timer. The wrapper logs the
- * time it takes to execute the function.
- */
-function time(name, fn) {
- var start = _.now();
- try {
- return fn();
- } finally {
- console.log(name + " time: " + (_.now() - start) + "ms");
- }
-}
-
-function notime(name, fn) {
- return fn();
-}
-
-},{"./graphlib":35,"./lodash":38}],58:[function(require,module,exports){
-module.exports = "0.7.3";
-
-},{}],59:[function(require,module,exports){
-/**
- * Copyright (c) 2014, Chris Pettitt
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of the copyright holder nor the names of its contributors
- * may be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-var lib = require("./lib");
-
-module.exports = {
- Graph: lib.Graph,
- json: require("./lib/json"),
- alg: require("./lib/alg"),
- version: lib.version
-};
-
-},{"./lib":75,"./lib/alg":66,"./lib/json":76}],60:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = components;
-
-function components(g) {
- var visited = {},
- cmpts = [],
- cmpt;
-
- function dfs(v) {
- if (_.has(visited, v)) return;
- visited[v] = true;
- cmpt.push(v);
- _.each(g.successors(v), dfs);
- _.each(g.predecessors(v), dfs);
- }
-
- _.each(g.nodes(), function(v) {
- cmpt = [];
- dfs(v);
- if (cmpt.length) {
- cmpts.push(cmpt);
- }
- });
-
- return cmpts;
-}
-
-},{"../lodash":77}],61:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = dfs;
-
-/*
- * A helper that preforms a pre- or post-order traversal on the input graph
- * and returns the nodes in the order they were visited. This algorithm treats
- * the input as undirected.
- *
- * Order must be one of "pre" or "post".
- */
-function dfs(g, vs, order) {
- if (!_.isArray(vs)) {
- vs = [vs];
- }
-
- var acc = [],
- visited = {};
- _.each(vs, function(v) {
- if (!g.hasNode(v)) {
- throw new Error("Graph does not have node: " + v);
- }
-
- doDfs(g, v, order === "post", visited, acc);
- });
- return acc;
-}
-
-function doDfs(g, v, postorder, visited, acc) {
- if (!_.has(visited, v)) {
- visited[v] = true;
-
- if (!postorder) { acc.push(v); }
- _.each(g.neighbors(v), function(w) {
- doDfs(g, w, postorder, visited, acc);
- });
- if (postorder) { acc.push(v); }
- }
-}
-
-},{"../lodash":77}],62:[function(require,module,exports){
-var dijkstra = require("./dijkstra"),
- _ = require("../lodash");
-
-module.exports = dijkstraAll;
-
-function dijkstraAll(g, weightFunc, edgeFunc) {
- return _.transform(g.nodes(), function(acc, v) {
- acc[v] = dijkstra(g, v, weightFunc, edgeFunc);
- }, {});
-}
-
-},{"../lodash":77,"./dijkstra":63}],63:[function(require,module,exports){
-var _ = require("../lodash"),
- PriorityQueue = require("../data/priority-queue");
-
-module.exports = dijkstra;
-
-var DEFAULT_WEIGHT_FUNC = _.constant(1);
-
-function dijkstra(g, source, weightFn, edgeFn) {
- return runDijkstra(g, String(source),
- weightFn || DEFAULT_WEIGHT_FUNC,
- edgeFn || function(v) { return g.outEdges(v); });
-}
-
-function runDijkstra(g, source, weightFn, edgeFn) {
- var results = {},
- pq = new PriorityQueue(),
- v, vEntry;
-
- var updateNeighbors = function(edge) {
- var w = edge.v !== v ? edge.v : edge.w,
- wEntry = results[w],
- weight = weightFn(edge),
- distance = vEntry.distance + weight;
-
- if (weight < 0) {
- throw new Error("dijkstra does not allow negative edge weights. " +
- "Bad edge: " + edge + " Weight: " + weight);
- }
-
- if (distance < wEntry.distance) {
- wEntry.distance = distance;
- wEntry.predecessor = v;
- pq.decrease(w, distance);
- }
- };
-
- g.nodes().forEach(function(v) {
- var distance = v === source ? 0 : Number.POSITIVE_INFINITY;
- results[v] = { distance: distance };
- pq.add(v, distance);
- });
-
- while (pq.size() > 0) {
- v = pq.removeMin();
- vEntry = results[v];
- if (vEntry.distance === Number.POSITIVE_INFINITY) {
- break;
- }
-
- edgeFn(v).forEach(updateNeighbors);
- }
-
- return results;
-}
-
-},{"../data/priority-queue":73,"../lodash":77}],64:[function(require,module,exports){
-var _ = require("../lodash"),
- tarjan = require("./tarjan");
-
-module.exports = findCycles;
-
-function findCycles(g) {
- return _.filter(tarjan(g), function(cmpt) {
- return cmpt.length > 1 || (cmpt.length === 1 && g.hasEdge(cmpt[0], cmpt[0]));
- });
-}
-
-},{"../lodash":77,"./tarjan":71}],65:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = floydWarshall;
-
-var DEFAULT_WEIGHT_FUNC = _.constant(1);
-
-function floydWarshall(g, weightFn, edgeFn) {
- return runFloydWarshall(g,
- weightFn || DEFAULT_WEIGHT_FUNC,
- edgeFn || function(v) { return g.outEdges(v); });
-}
-
-function runFloydWarshall(g, weightFn, edgeFn) {
- var results = {},
- nodes = g.nodes();
-
- nodes.forEach(function(v) {
- results[v] = {};
- results[v][v] = { distance: 0 };
- nodes.forEach(function(w) {
- if (v !== w) {
- results[v][w] = { distance: Number.POSITIVE_INFINITY };
- }
- });
- edgeFn(v).forEach(function(edge) {
- var w = edge.v === v ? edge.w : edge.v,
- d = weightFn(edge);
- results[v][w] = { distance: d, predecessor: v };
- });
- });
-
- nodes.forEach(function(k) {
- var rowK = results[k];
- nodes.forEach(function(i) {
- var rowI = results[i];
- nodes.forEach(function(j) {
- var ik = rowI[k];
- var kj = rowK[j];
- var ij = rowI[j];
- var altDistance = ik.distance + kj.distance;
- if (altDistance < ij.distance) {
- ij.distance = altDistance;
- ij.predecessor = kj.predecessor;
- }
- });
- });
- });
-
- return results;
-}
-
-},{"../lodash":77}],66:[function(require,module,exports){
-module.exports = {
- components: require("./components"),
- dijkstra: require("./dijkstra"),
- dijkstraAll: require("./dijkstra-all"),
- findCycles: require("./find-cycles"),
- floydWarshall: require("./floyd-warshall"),
- isAcyclic: require("./is-acyclic"),
- postorder: require("./postorder"),
- preorder: require("./preorder"),
- prim: require("./prim"),
- tarjan: require("./tarjan"),
- topsort: require("./topsort")
-};
-
-},{"./components":60,"./dijkstra":63,"./dijkstra-all":62,"./find-cycles":64,"./floyd-warshall":65,"./is-acyclic":67,"./postorder":68,"./preorder":69,"./prim":70,"./tarjan":71,"./topsort":72}],67:[function(require,module,exports){
-var topsort = require("./topsort");
-
-module.exports = isAcyclic;
-
-function isAcyclic(g) {
- try {
- topsort(g);
- } catch (e) {
- if (e instanceof topsort.CycleException) {
- return false;
- }
- throw e;
- }
- return true;
-}
-
-},{"./topsort":72}],68:[function(require,module,exports){
-var dfs = require("./dfs");
-
-module.exports = postorder;
-
-function postorder(g, vs) {
- return dfs(g, vs, "post");
-}
-
-},{"./dfs":61}],69:[function(require,module,exports){
-var dfs = require("./dfs");
-
-module.exports = preorder;
-
-function preorder(g, vs) {
- return dfs(g, vs, "pre");
-}
-
-},{"./dfs":61}],70:[function(require,module,exports){
-var _ = require("../lodash"),
- Graph = require("../graph"),
- PriorityQueue = require("../data/priority-queue");
-
-module.exports = prim;
-
-function prim(g, weightFunc) {
- var result = new Graph(),
- parents = {},
- pq = new PriorityQueue(),
- v;
-
- function updateNeighbors(edge) {
- var w = edge.v === v ? edge.w : edge.v,
- pri = pq.priority(w);
- if (pri !== undefined) {
- var edgeWeight = weightFunc(edge);
- if (edgeWeight < pri) {
- parents[w] = v;
- pq.decrease(w, edgeWeight);
- }
- }
- }
-
- if (g.nodeCount() === 0) {
- return result;
- }
-
- _.each(g.nodes(), function(v) {
- pq.add(v, Number.POSITIVE_INFINITY);
- result.setNode(v);
- });
-
- // Start from an arbitrary node
- pq.decrease(g.nodes()[0], 0);
-
- var init = false;
- while (pq.size() > 0) {
- v = pq.removeMin();
- if (_.has(parents, v)) {
- result.setEdge(v, parents[v]);
- } else if (init) {
- throw new Error("Input graph is not connected: " + g);
- } else {
- init = true;
- }
-
- g.nodeEdges(v).forEach(updateNeighbors);
- }
-
- return result;
-}
-
-},{"../data/priority-queue":73,"../graph":74,"../lodash":77}],71:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = tarjan;
-
-function tarjan(g) {
- var index = 0,
- stack = [],
- visited = {}, // node id -> { onStack, lowlink, index }
- results = [];
-
- function dfs(v) {
- var entry = visited[v] = {
- onStack: true,
- lowlink: index,
- index: index++
- };
- stack.push(v);
-
- g.successors(v).forEach(function(w) {
- if (!_.has(visited, w)) {
- dfs(w);
- entry.lowlink = Math.min(entry.lowlink, visited[w].lowlink);
- } else if (visited[w].onStack) {
- entry.lowlink = Math.min(entry.lowlink, visited[w].index);
- }
- });
-
- if (entry.lowlink === entry.index) {
- var cmpt = [],
- w;
- do {
- w = stack.pop();
- visited[w].onStack = false;
- cmpt.push(w);
- } while (v !== w);
- results.push(cmpt);
- }
- }
-
- g.nodes().forEach(function(v) {
- if (!_.has(visited, v)) {
- dfs(v);
- }
- });
-
- return results;
-}
-
-},{"../lodash":77}],72:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = topsort;
-topsort.CycleException = CycleException;
-
-function topsort(g) {
- var visited = {},
- stack = {},
- results = [];
-
- function visit(node) {
- if (_.has(stack, node)) {
- throw new CycleException();
- }
-
- if (!_.has(visited, node)) {
- stack[node] = true;
- visited[node] = true;
- _.each(g.predecessors(node), visit);
- delete stack[node];
- results.push(node);
- }
- }
-
- _.each(g.sinks(), visit);
-
- if (_.size(visited) !== g.nodeCount()) {
- throw new CycleException();
- }
-
- return results;
-}
-
-function CycleException() {}
-
-},{"../lodash":77}],73:[function(require,module,exports){
-var _ = require("../lodash");
-
-module.exports = PriorityQueue;
-
-/**
- * A min-priority queue data structure. This algorithm is derived from Cormen,
- * et al., "Introduction to Algorithms". The basic idea of a min-priority
- * queue is that you can efficiently (in O(1) time) get the smallest key in
- * the queue. Adding and removing elements takes O(log n) time. A key can
- * have its priority decreased in O(log n) time.
- */
-function PriorityQueue() {
- this._arr = [];
- this._keyIndices = {};
-}
-
-/**
- * Returns the number of elements in the queue. Takes `O(1)` time.
- */
-PriorityQueue.prototype.size = function() {
- return this._arr.length;
-};
-
-/**
- * Returns the keys that are in the queue. Takes `O(n)` time.
- */
-PriorityQueue.prototype.keys = function() {
- return this._arr.map(function(x) { return x.key; });
-};
-
-/**
- * Returns `true` if **key** is in the queue and `false` if not.
- */
-PriorityQueue.prototype.has = function(key) {
- return _.has(this._keyIndices, key);
-};
-
-/**
- * Returns the priority for **key**. If **key** is not present in the queue
- * then this function returns `undefined`. Takes `O(1)` time.
- *
- * @param {Object} key
- */
-PriorityQueue.prototype.priority = function(key) {
- var index = this._keyIndices[key];
- if (index !== undefined) {
- return this._arr[index].priority;
- }
-};
-
-/**
- * Returns the key for the minimum element in this queue. If the queue is
- * empty this function throws an Error. Takes `O(1)` time.
- */
-PriorityQueue.prototype.min = function() {
- if (this.size() === 0) {
- throw new Error("Queue underflow");
- }
- return this._arr[0].key;
-};
-
-/**
- * Inserts a new key into the priority queue. If the key already exists in
- * the queue this function returns `false`; otherwise it will return `true`.
- * Takes `O(n)` time.
- *
- * @param {Object} key the key to add
- * @param {Number} priority the initial priority for the key
- */
-PriorityQueue.prototype.add = function(key, priority) {
- var keyIndices = this._keyIndices;
- key = String(key);
- if (!_.has(keyIndices, key)) {
- var arr = this._arr;
- var index = arr.length;
- keyIndices[key] = index;
- arr.push({key: key, priority: priority});
- this._decrease(index);
- return true;
- }
- return false;
-};
-
-/**
- * Removes and returns the smallest key in the queue. Takes `O(log n)` time.
- */
-PriorityQueue.prototype.removeMin = function() {
- this._swap(0, this._arr.length - 1);
- var min = this._arr.pop();
- delete this._keyIndices[min.key];
- this._heapify(0);
- return min.key;
-};
-
-/**
- * Decreases the priority for **key** to **priority**. If the new priority is
- * greater than the previous priority, this function will throw an Error.
- *
- * @param {Object} key the key for which to raise priority
- * @param {Number} priority the new priority for the key
- */
-PriorityQueue.prototype.decrease = function(key, priority) {
- var index = this._keyIndices[key];
- if (priority > this._arr[index].priority) {
- throw new Error("New priority is greater than current priority. " +
- "Key: " + key + " Old: " + this._arr[index].priority + " New: " + priority);
- }
- this._arr[index].priority = priority;
- this._decrease(index);
-};
-
-PriorityQueue.prototype._heapify = function(i) {
- var arr = this._arr;
- var l = 2 * i,
- r = l + 1,
- largest = i;
- if (l < arr.length) {
- largest = arr[l].priority < arr[largest].priority ? l : largest;
- if (r < arr.length) {
- largest = arr[r].priority < arr[largest].priority ? r : largest;
- }
- if (largest !== i) {
- this._swap(i, largest);
- this._heapify(largest);
- }
- }
-};
-
-PriorityQueue.prototype._decrease = function(index) {
- var arr = this._arr;
- var priority = arr[index].priority;
- var parent;
- while (index !== 0) {
- parent = index >> 1;
- if (arr[parent].priority < priority) {
- break;
- }
- this._swap(index, parent);
- index = parent;
- }
-};
-
-PriorityQueue.prototype._swap = function(i, j) {
- var arr = this._arr;
- var keyIndices = this._keyIndices;
- var origArrI = arr[i];
- var origArrJ = arr[j];
- arr[i] = origArrJ;
- arr[j] = origArrI;
- keyIndices[origArrJ.key] = i;
- keyIndices[origArrI.key] = j;
-};
-
-},{"../lodash":77}],74:[function(require,module,exports){
-"use strict";
-
-var _ = require("./lodash");
-
-module.exports = Graph;
-
-var DEFAULT_EDGE_NAME = "\x00",
- GRAPH_NODE = "\x00",
- EDGE_KEY_DELIM = "\x01";
-
-// Implementation notes:
-//
-// * Node id query functions should return string ids for the nodes
-// * Edge id query functions should return an "edgeObj", edge object, that is
-// composed of enough information to uniquely identify an edge: {v, w, name}.
-// * Internally we use an "edgeId", a stringified form of the edgeObj, to
-// reference edges. This is because we need a performant way to look these
-// edges up and, object properties, which have string keys, are the closest
-// we're going to get to a performant hashtable in JavaScript.
-
-function Graph(opts) {
- this._isDirected = _.has(opts, "directed") ? opts.directed : true;
- this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
- this._isCompound = _.has(opts, "compound") ? opts.compound : false;
-
- // Label for the graph itself
- this._label = undefined;
-
- // Defaults to be set when creating a new node
- this._defaultNodeLabelFn = _.constant(undefined);
-
- // Defaults to be set when creating a new edge
- this._defaultEdgeLabelFn = _.constant(undefined);
-
- // v -> label
- this._nodes = {};
-
- if (this._isCompound) {
- // v -> parent
- this._parent = {};
-
- // v -> children
- this._children = {};
- this._children[GRAPH_NODE] = {};
- }
-
- // v -> edgeObj
- this._in = {};
-
- // u -> v -> Number
- this._preds = {};
-
- // v -> edgeObj
- this._out = {};
-
- // v -> w -> Number
- this._sucs = {};
-
- // e -> edgeObj
- this._edgeObjs = {};
-
- // e -> label
- this._edgeLabels = {};
-}
-
-/* Number of nodes in the graph. Should only be changed by the implementation. */
-Graph.prototype._nodeCount = 0;
-
-/* Number of edges in the graph. Should only be changed by the implementation. */
-Graph.prototype._edgeCount = 0;
-
-
-/* === Graph functions ========= */
-
-Graph.prototype.isDirected = function() {
- return this._isDirected;
-};
-
-Graph.prototype.isMultigraph = function() {
- return this._isMultigraph;
-};
-
-Graph.prototype.isCompound = function() {
- return this._isCompound;
-};
-
-Graph.prototype.setGraph = function(label) {
- this._label = label;
- return this;
-};
-
-Graph.prototype.graph = function() {
- return this._label;
-};
-
-
-/* === Node functions ========== */
-
-Graph.prototype.setDefaultNodeLabel = function(newDefault) {
- if (!_.isFunction(newDefault)) {
- newDefault = _.constant(newDefault);
- }
- this._defaultNodeLabelFn = newDefault;
- return this;
-};
-
-Graph.prototype.nodeCount = function() {
- return this._nodeCount;
-};
-
-Graph.prototype.nodes = function() {
- return _.keys(this._nodes);
-};
-
-Graph.prototype.sources = function() {
- return _.filter(this.nodes(), function(v) {
- return _.isEmpty(this._in[v]);
- }, this);
-};
-
-Graph.prototype.sinks = function() {
- return _.filter(this.nodes(), function(v) {
- return _.isEmpty(this._out[v]);
- }, this);
-};
-
-Graph.prototype.setNodes = function(vs, value) {
- var args = arguments;
- _.each(vs, function(v) {
- if (args.length > 1) {
- this.setNode(v, value);
- } else {
- this.setNode(v);
- }
- }, this);
- return this;
-};
-
-Graph.prototype.setNode = function(v, value) {
- if (_.has(this._nodes, v)) {
- if (arguments.length > 1) {
- this._nodes[v] = value;
- }
- return this;
- }
-
- this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
- if (this._isCompound) {
- this._parent[v] = GRAPH_NODE;
- this._children[v] = {};
- this._children[GRAPH_NODE][v] = true;
- }
- this._in[v] = {};
- this._preds[v] = {};
- this._out[v] = {};
- this._sucs[v] = {};
- ++this._nodeCount;
- return this;
-};
-
-Graph.prototype.node = function(v) {
- return this._nodes[v];
-};
-
-Graph.prototype.hasNode = function(v) {
- return _.has(this._nodes, v);
-};
-
-Graph.prototype.removeNode = function(v) {
- var self = this;
- if (_.has(this._nodes, v)) {
- var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
- delete this._nodes[v];
- if (this._isCompound) {
- this._removeFromParentsChildList(v);
- delete this._parent[v];
- _.each(this.children(v), function(child) {
- this.setParent(child);
- }, this);
- delete this._children[v];
- }
- _.each(_.keys(this._in[v]), removeEdge);
- delete this._in[v];
- delete this._preds[v];
- _.each(_.keys(this._out[v]), removeEdge);
- delete this._out[v];
- delete this._sucs[v];
- --this._nodeCount;
- }
- return this;
-};
-
-Graph.prototype.setParent = function(v, parent) {
- if (!this._isCompound) {
- throw new Error("Cannot set parent in a non-compound graph");
- }
-
- if (_.isUndefined(parent)) {
- parent = GRAPH_NODE;
- } else {
- // Coerce parent to string
- parent += "";
- for (var ancestor = parent;
- !_.isUndefined(ancestor);
- ancestor = this.parent(ancestor)) {
- if (ancestor === v) {
- throw new Error("Setting " + parent+ " as parent of " + v +
- " would create create a cycle");
- }
- }
-
- this.setNode(parent);
- }
-
- this.setNode(v);
- this._removeFromParentsChildList(v);
- this._parent[v] = parent;
- this._children[parent][v] = true;
- return this;
-};
-
-Graph.prototype._removeFromParentsChildList = function(v) {
- delete this._children[this._parent[v]][v];
-};
-
-Graph.prototype.parent = function(v) {
- if (this._isCompound) {
- var parent = this._parent[v];
- if (parent !== GRAPH_NODE) {
- return parent;
- }
- }
-};
-
-Graph.prototype.children = function(v) {
- if (_.isUndefined(v)) {
- v = GRAPH_NODE;
- }
-
- if (this._isCompound) {
- var children = this._children[v];
- if (children) {
- return _.keys(children);
- }
- } else if (v === GRAPH_NODE) {
- return this.nodes();
- } else if (this.hasNode(v)) {
- return [];
- }
-};
-
-Graph.prototype.predecessors = function(v) {
- var predsV = this._preds[v];
- if (predsV) {
- return _.keys(predsV);
- }
-};
-
-Graph.prototype.successors = function(v) {
- var sucsV = this._sucs[v];
- if (sucsV) {
- return _.keys(sucsV);
- }
-};
-
-Graph.prototype.neighbors = function(v) {
- var preds = this.predecessors(v);
- if (preds) {
- return _.union(preds, this.successors(v));
- }
-};
-
-/* === Edge functions ========== */
-
-Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
- if (!_.isFunction(newDefault)) {
- newDefault = _.constant(newDefault);
- }
- this._defaultEdgeLabelFn = newDefault;
- return this;
-};
-
-Graph.prototype.edgeCount = function() {
- return this._edgeCount;
-};
-
-Graph.prototype.edges = function() {
- return _.values(this._edgeObjs);
-};
-
-Graph.prototype.setPath = function(vs, value) {
- var self = this,
- args = arguments;
- _.reduce(vs, function(v, w) {
- if (args.length > 1) {
- self.setEdge(v, w, value);
- } else {
- self.setEdge(v, w);
- }
- return w;
- });
- return this;
-};
-
-/*
- * setEdge(v, w, [value, [name]])
- * setEdge({ v, w, [name] }, [value])
- */
-Graph.prototype.setEdge = function() {
- var v, w, name, value,
- valueSpecified = false;
-
- if (_.isPlainObject(arguments[0])) {
- v = arguments[0].v;
- w = arguments[0].w;
- name = arguments[0].name;
- if (arguments.length === 2) {
- value = arguments[1];
- valueSpecified = true;
- }
- } else {
- v = arguments[0];
- w = arguments[1];
- name = arguments[3];
- if (arguments.length > 2) {
- value = arguments[2];
- valueSpecified = true;
- }
- }
-
- v = "" + v;
- w = "" + w;
- if (!_.isUndefined(name)) {
- name = "" + name;
- }
-
- var e = edgeArgsToId(this._isDirected, v, w, name);
- if (_.has(this._edgeLabels, e)) {
- if (valueSpecified) {
- this._edgeLabels[e] = value;
- }
- return this;
- }
-
- if (!_.isUndefined(name) && !this._isMultigraph) {
- throw new Error("Cannot set a named edge when isMultigraph = false");
- }
-
- // It didn't exist, so we need to create it.
- // First ensure the nodes exist.
- this.setNode(v);
- this.setNode(w);
-
- this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
-
- var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
- // Ensure we add undirected edges in a consistent way.
- v = edgeObj.v;
- w = edgeObj.w;
-
- Object.freeze(edgeObj);
- this._edgeObjs[e] = edgeObj;
- incrementOrInitEntry(this._preds[w], v);
- incrementOrInitEntry(this._sucs[v], w);
- this._in[w][e] = edgeObj;
- this._out[v][e] = edgeObj;
- this._edgeCount++;
- return this;
-};
-
-Graph.prototype.edge = function(v, w, name) {
- var e = (arguments.length === 1
- ? edgeObjToId(this._isDirected, arguments[0])
- : edgeArgsToId(this._isDirected, v, w, name));
- return this._edgeLabels[e];
-};
-
-Graph.prototype.hasEdge = function(v, w, name) {
- var e = (arguments.length === 1
- ? edgeObjToId(this._isDirected, arguments[0])
- : edgeArgsToId(this._isDirected, v, w, name));
- return _.has(this._edgeLabels, e);
-};
-
-Graph.prototype.removeEdge = function(v, w, name) {
- var e = (arguments.length === 1
- ? edgeObjToId(this._isDirected, arguments[0])
- : edgeArgsToId(this._isDirected, v, w, name)),
- edge = this._edgeObjs[e];
- if (edge) {
- v = edge.v;
- w = edge.w;
- delete this._edgeLabels[e];
- delete this._edgeObjs[e];
- decrementOrRemoveEntry(this._preds[w], v);
- decrementOrRemoveEntry(this._sucs[v], w);
- delete this._in[w][e];
- delete this._out[v][e];
- this._edgeCount--;
- }
- return this;
-};
-
-Graph.prototype.inEdges = function(v, u) {
- var inV = this._in[v];
- if (inV) {
- var edges = _.values(inV);
- if (!u) {
- return edges;
- }
- return _.filter(edges, function(edge) { return edge.v === u; });
- }
-};
-
-Graph.prototype.outEdges = function(v, w) {
- var outV = this._out[v];
- if (outV) {
- var edges = _.values(outV);
- if (!w) {
- return edges;
- }
- return _.filter(edges, function(edge) { return edge.w === w; });
- }
-};
-
-Graph.prototype.nodeEdges = function(v, w) {
- var inEdges = this.inEdges(v, w);
- if (inEdges) {
- return inEdges.concat(this.outEdges(v, w));
- }
-};
-
-function incrementOrInitEntry(map, k) {
- if (_.has(map, k)) {
- map[k]++;
- } else {
- map[k] = 1;
- }
-}
-
-function decrementOrRemoveEntry(map, k) {
- if (!--map[k]) { delete map[k]; }
-}
-
-function edgeArgsToId(isDirected, v, w, name) {
- if (!isDirected && v > w) {
- var tmp = v;
- v = w;
- w = tmp;
- }
- return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
- (_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
-}
-
-function edgeArgsToObj(isDirected, v, w, name) {
- if (!isDirected && v > w) {
- var tmp = v;
- v = w;
- w = tmp;
- }
- var edgeObj = { v: v, w: w };
- if (name) {
- edgeObj.name = name;
- }
- return edgeObj;
-}
-
-function edgeObjToId(isDirected, edgeObj) {
- return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
-}
-
-},{"./lodash":77}],75:[function(require,module,exports){
-// Includes only the "core" of graphlib
-module.exports = {
- Graph: require("./graph"),
- version: require("./version")
-};
-
-},{"./graph":74,"./version":78}],76:[function(require,module,exports){
-var _ = require("./lodash"),
- Graph = require("./graph");
-
-module.exports = {
- write: write,
- read: read
-};
-
-function write(g) {
- var json = {
- options: {
- directed: g.isDirected(),
- multigraph: g.isMultigraph(),
- compound: g.isCompound()
- },
- nodes: writeNodes(g),
- edges: writeEdges(g)
- };
- if (!_.isUndefined(g.graph())) {
- json.value = _.clone(g.graph());
- }
- return json;
-}
-
-function writeNodes(g) {
- return _.map(g.nodes(), function(v) {
- var nodeValue = g.node(v),
- parent = g.parent(v),
- node = { v: v };
- if (!_.isUndefined(nodeValue)) {
- node.value = nodeValue;
- }
- if (!_.isUndefined(parent)) {
- node.parent = parent;
- }
- return node;
- });
-}
-
-function writeEdges(g) {
- return _.map(g.edges(), function(e) {
- var edgeValue = g.edge(e),
- edge = { v: e.v, w: e.w };
- if (!_.isUndefined(e.name)) {
- edge.name = e.name;
- }
- if (!_.isUndefined(edgeValue)) {
- edge.value = edgeValue;
- }
- return edge;
- });
-}
-
-function read(json) {
- var g = new Graph(json.options).setGraph(json.value);
- _.each(json.nodes, function(entry) {
- g.setNode(entry.v, entry.value);
- if (entry.parent) {
- g.setParent(entry.v, entry.parent);
- }
- });
- _.each(json.edges, function(entry) {
- g.setEdge({ v: entry.v, w: entry.w, name: entry.name }, entry.value);
- });
- return g;
-}
-
-},{"./graph":74,"./lodash":77}],77:[function(require,module,exports){
-/* global window */
-
-var lodash;
-
-if (typeof require === "function") {
- try {
- lodash = require("lodash");
- } catch (e) {}
-}
-
-if (!lodash) {
- lodash = window._;
-}
-
-module.exports = lodash;
-
-},{"lodash":79}],78:[function(require,module,exports){
-module.exports = '1.0.5';
-
-},{}],79:[function(require,module,exports){
-(function (global){
-/**
- * @license
- * lodash 3.10.0 (Custom Build)
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license
- */
-;(function() {
-
- /** Used as a safe reference for `undefined` in pre-ES5 environments. */
- var undefined;
-
- /** Used as the semantic version number. */
- var VERSION = '3.10.0';
-
- /** Used to compose bitmasks for wrapper metadata. */
- var BIND_FLAG = 1,
- BIND_KEY_FLAG = 2,
- CURRY_BOUND_FLAG = 4,
- CURRY_FLAG = 8,
- CURRY_RIGHT_FLAG = 16,
- PARTIAL_FLAG = 32,
- PARTIAL_RIGHT_FLAG = 64,
- ARY_FLAG = 128,
- REARG_FLAG = 256;
-
- /** Used as default options for `_.trunc`. */
- var DEFAULT_TRUNC_LENGTH = 30,
- DEFAULT_TRUNC_OMISSION = '...';
-
- /** Used to detect when a function becomes hot. */
- var HOT_COUNT = 150,
- HOT_SPAN = 16;
-
- /** Used as the size to enable large array optimizations. */
- var LARGE_ARRAY_SIZE = 200;
-
- /** Used to indicate the type of lazy iteratees. */
- var LAZY_FILTER_FLAG = 1,
- LAZY_MAP_FLAG = 2;
-
- /** Used as the `TypeError` message for "Functions" methods. */
- var FUNC_ERROR_TEXT = 'Expected a function';
-
- /** Used as the internal argument placeholder. */
- var PLACEHOLDER = '__lodash_placeholder__';
-
- /** `Object#toString` result references. */
- var argsTag = '[object Arguments]',
- arrayTag = '[object Array]',
- boolTag = '[object Boolean]',
- dateTag = '[object Date]',
- errorTag = '[object Error]',
- funcTag = '[object Function]',
- mapTag = '[object Map]',
- numberTag = '[object Number]',
- objectTag = '[object Object]',
- regexpTag = '[object RegExp]',
- setTag = '[object Set]',
- stringTag = '[object String]',
- weakMapTag = '[object WeakMap]';
-
- var arrayBufferTag = '[object ArrayBuffer]',
- float32Tag = '[object Float32Array]',
- float64Tag = '[object Float64Array]',
- int8Tag = '[object Int8Array]',
- int16Tag = '[object Int16Array]',
- int32Tag = '[object Int32Array]',
- uint8Tag = '[object Uint8Array]',
- uint8ClampedTag = '[object Uint8ClampedArray]',
- uint16Tag = '[object Uint16Array]',
- uint32Tag = '[object Uint32Array]';
-
- /** Used to match empty string literals in compiled template source. */
- var reEmptyStringLeading = /\b__p \+= '';/g,
- reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
- reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
-
- /** Used to match HTML entities and HTML characters. */
- var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
- reUnescapedHtml = /[&<>"'`]/g,
- reHasEscapedHtml = RegExp(reEscapedHtml.source),
- reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
-
- /** Used to match template delimiters. */
- var reEscape = /<%-([\s\S]+?)%>/g,
- reEvaluate = /<%([\s\S]+?)%>/g,
- reInterpolate = /<%=([\s\S]+?)%>/g;
-
- /** Used to match property names within property paths. */
- var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
- reIsPlainProp = /^\w*$/,
- rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;
-
- /**
- * Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns)
- * and those outlined by [`EscapeRegExpPattern`](http://ecma-international.org/ecma-262/6.0/#sec-escaperegexppattern).
- */
- var reRegExpChars = /^[:!,]|[\\^$.*+?()[\]{}|\/]|(^[0-9a-fA-Fnrtuvx])|([\n\r\u2028\u2029])/g,
- reHasRegExpChars = RegExp(reRegExpChars.source);
-
- /** Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks). */
- var reComboMark = /[\u0300-\u036f\ufe20-\ufe23]/g;
-
- /** Used to match backslashes in property paths. */
- var reEscapeChar = /\\(\\)?/g;
-
- /** Used to match [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components). */
- var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
-
- /** Used to match `RegExp` flags from their coerced string values. */
- var reFlags = /\w*$/;
-
- /** Used to detect hexadecimal string values. */
- var reHasHexPrefix = /^0[xX]/;
-
- /** Used to detect host constructors (Safari > 5). */
- var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
- /** Used to detect unsigned integer values. */
- var reIsUint = /^\d+$/;
-
- /** Used to match latin-1 supplementary letters (excluding mathematical operators). */
- var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
-
- /** Used to ensure capturing order of template delimiters. */
- var reNoMatch = /($^)/;
-
- /** Used to match unescaped characters in compiled string literals. */
- var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
-
- /** Used to match words to create compound words. */
- var reWords = (function() {
- var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
- lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';
-
- return RegExp(upper + '+(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
- }());
-
- /** Used to assign default `context` object properties. */
- var contextProps = [
- 'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
- 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
- 'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'isFinite',
- 'parseFloat', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
- 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap'
- ];
-
- /** Used to make template sourceURLs easier to identify. */
- var templateCounter = -1;
-
- /** Used to identify `toStringTag` values of typed arrays. */
- var typedArrayTags = {};
- typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
- typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
- typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
- typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
- typedArrayTags[uint32Tag] = true;
- typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
- typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
- typedArrayTags[dateTag] = typedArrayTags[errorTag] =
- typedArrayTags[funcTag] = typedArrayTags[mapTag] =
- typedArrayTags[numberTag] = typedArrayTags[objectTag] =
- typedArrayTags[regexpTag] = typedArrayTags[setTag] =
- typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
-
- /** Used to identify `toStringTag` values supported by `_.clone`. */
- var cloneableTags = {};
- cloneableTags[argsTag] = cloneableTags[arrayTag] =
- cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
- cloneableTags[dateTag] = cloneableTags[float32Tag] =
- cloneableTags[float64Tag] = cloneableTags[int8Tag] =
- cloneableTags[int16Tag] = cloneableTags[int32Tag] =
- cloneableTags[numberTag] = cloneableTags[objectTag] =
- cloneableTags[regexpTag] = cloneableTags[stringTag] =
- cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
- cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
- cloneableTags[errorTag] = cloneableTags[funcTag] =
- cloneableTags[mapTag] = cloneableTags[setTag] =
- cloneableTags[weakMapTag] = false;
-
- /** Used to map latin-1 supplementary letters to basic latin letters. */
- var deburredLetters = {
- '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
- '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
- '\xc7': 'C', '\xe7': 'c',
- '\xd0': 'D', '\xf0': 'd',
- '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
- '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
- '\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
- '\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
- '\xd1': 'N', '\xf1': 'n',
- '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
- '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
- '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
- '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
- '\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
- '\xc6': 'Ae', '\xe6': 'ae',
- '\xde': 'Th', '\xfe': 'th',
- '\xdf': 'ss'
- };
-
- /** Used to map characters to HTML entities. */
- var htmlEscapes = {
- '&': '&',
- '<': '<',
- '>': '>',
- '"': '"',
- "'": ''',
- '`': '`'
- };
-
- /** Used to map HTML entities to characters. */
- var htmlUnescapes = {
- '&': '&',
- '<': '<',
- '>': '>',
- '"': '"',
- ''': "'",
- '`': '`'
- };
-
- /** Used to determine if values are of the language type `Object`. */
- var objectTypes = {
- 'function': true,
- 'object': true
- };
-
- /** Used to escape characters for inclusion in compiled regexes. */
- var regexpEscapes = {
- '0': 'x30', '1': 'x31', '2': 'x32', '3': 'x33', '4': 'x34',
- '5': 'x35', '6': 'x36', '7': 'x37', '8': 'x38', '9': 'x39',
- 'A': 'x41', 'B': 'x42', 'C': 'x43', 'D': 'x44', 'E': 'x45', 'F': 'x46',
- 'a': 'x61', 'b': 'x62', 'c': 'x63', 'd': 'x64', 'e': 'x65', 'f': 'x66',
- 'n': 'x6e', 'r': 'x72', 't': 'x74', 'u': 'x75', 'v': 'x76', 'x': 'x78'
- };
-
- /** Used to escape characters for inclusion in compiled string literals. */
- var stringEscapes = {
- '\\': '\\',
- "'": "'",
- '\n': 'n',
- '\r': 'r',
- '\u2028': 'u2028',
- '\u2029': 'u2029'
- };
-
- /** Detect free variable `exports`. */
- var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
-
- /** Detect free variable `module`. */
- var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
-
- /** Detect free variable `global` from Node.js. */
- var freeGlobal = freeExports && freeModule && typeof global == 'object' && global && global.Object && global;
-
- /** Detect free variable `self`. */
- var freeSelf = objectTypes[typeof self] && self && self.Object && self;
-
- /** Detect free variable `window`. */
- var freeWindow = objectTypes[typeof window] && window && window.Object && window;
-
- /** Detect the popular CommonJS extension `module.exports`. */
- var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
-
- /**
- * Used as a reference to the global object.
- *
- * The `this` value is used if it's the global object to avoid Greasemonkey's
- * restricted `window` object, otherwise the `window` object is used.
- */
- var root = freeGlobal || ((freeWindow !== (this && this.window)) && freeWindow) || freeSelf || this;
-
- /*--------------------------------------------------------------------------*/
-
- /**
- * The base implementation of `compareAscending` which compares values and
- * sorts them in ascending order without guaranteeing a stable sort.
- *
- * @private
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {number} Returns the sort order indicator for `value`.
- */
- function baseCompareAscending(value, other) {
- if (value !== other) {
- var valIsNull = value === null,
- valIsUndef = value === undefined,
- valIsReflexive = value === value;
-
- var othIsNull = other === null,
- othIsUndef = other === undefined,
- othIsReflexive = other === other;
-
- if ((value > other && !othIsNull) || !valIsReflexive ||
- (valIsNull && !othIsUndef && othIsReflexive) ||
- (valIsUndef && othIsReflexive)) {
- return 1;
- }
- if ((value < other && !valIsNull) || !othIsReflexive ||
- (othIsNull && !valIsUndef && valIsReflexive) ||
- (othIsUndef && valIsReflexive)) {
- return -1;
- }
- }
- return 0;
- }
-
- /**
- * The base implementation of `_.findIndex` and `_.findLastIndex` without
- * support for callback shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to search.
- * @param {Function} predicate The function invoked per iteration.
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
- function baseFindIndex(array, predicate, fromRight) {
- var length = array.length,
- index = fromRight ? length : -1;
-
- while ((fromRight ? index-- : ++index < length)) {
- if (predicate(array[index], index, array)) {
- return index;
- }
- }
- return -1;
- }
-
- /**
- * The base implementation of `_.indexOf` without support for binary searches.
- *
- * @private
- * @param {Array} array The array to search.
- * @param {*} value The value to search for.
- * @param {number} fromIndex The index to search from.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
- function baseIndexOf(array, value, fromIndex) {
- if (value !== value) {
- return indexOfNaN(array, fromIndex);
- }
- var index = fromIndex - 1,
- length = array.length;
-
- while (++index < length) {
- if (array[index] === value) {
- return index;
- }
- }
- return -1;
- }
-
- /**
- * The base implementation of `_.isFunction` without support for environments
- * with incorrect `typeof` results.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- */
- function baseIsFunction(value) {
- // Avoid a Chakra JIT bug in compatibility modes of IE 11.
- // See https://github.com/jashkenas/underscore/issues/1621 for more details.
- return typeof value == 'function' || false;
- }
-
- /**
- * Converts `value` to a string if it's not one. An empty string is returned
- * for `null` or `undefined` values.
- *
- * @private
- * @param {*} value The value to process.
- * @returns {string} Returns the string.
- */
- function baseToString(value) {
- return value == null ? '' : (value + '');
- }
-
- /**
- * Used by `_.trim` and `_.trimLeft` to get the index of the first character
- * of `string` that is not found in `chars`.
- *
- * @private
- * @param {string} string The string to inspect.
- * @param {string} chars The characters to find.
- * @returns {number} Returns the index of the first character not found in `chars`.
- */
- function charsLeftIndex(string, chars) {
- var index = -1,
- length = string.length;
-
- while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
- return index;
- }
-
- /**
- * Used by `_.trim` and `_.trimRight` to get the index of the last character
- * of `string` that is not found in `chars`.
- *
- * @private
- * @param {string} string The string to inspect.
- * @param {string} chars The characters to find.
- * @returns {number} Returns the index of the last character not found in `chars`.
- */
- function charsRightIndex(string, chars) {
- var index = string.length;
-
- while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
- return index;
- }
-
- /**
- * Used by `_.sortBy` to compare transformed elements of a collection and stable
- * sort them in ascending order.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @returns {number} Returns the sort order indicator for `object`.
- */
- function compareAscending(object, other) {
- return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
- }
-
- /**
- * Used by `_.sortByOrder` to compare multiple properties of a value to another
- * and stable sort them.
- *
- * If `orders` is unspecified, all valuess are sorted in ascending order. Otherwise,
- * a value is sorted in ascending order if its corresponding order is "asc", and
- * descending if "desc".
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {boolean[]} orders The order to sort by for each property.
- * @returns {number} Returns the sort order indicator for `object`.
- */
- function compareMultiple(object, other, orders) {
- var index = -1,
- objCriteria = object.criteria,
- othCriteria = other.criteria,
- length = objCriteria.length,
- ordersLength = orders.length;
-
- while (++index < length) {
- var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
- if (result) {
- if (index >= ordersLength) {
- return result;
- }
- var order = orders[index];
- return result * ((order === 'asc' || order === true) ? 1 : -1);
- }
- }
- // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
- // that causes it, under certain circumstances, to provide the same value for
- // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
- // for more details.
- //
- // This also ensures a stable sort in V8 and other engines.
- // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
- return object.index - other.index;
- }
-
- /**
- * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
- *
- * @private
- * @param {string} letter The matched letter to deburr.
- * @returns {string} Returns the deburred letter.
- */
- function deburrLetter(letter) {
- return deburredLetters[letter];
- }
-
- /**
- * Used by `_.escape` to convert characters to HTML entities.
- *
- * @private
- * @param {string} chr The matched character to escape.
- * @returns {string} Returns the escaped character.
- */
- function escapeHtmlChar(chr) {
- return htmlEscapes[chr];
- }
-
- /**
- * Used by `_.escapeRegExp` to escape characters for inclusion in compiled regexes.
- *
- * @private
- * @param {string} chr The matched character to escape.
- * @param {string} leadingChar The capture group for a leading character.
- * @param {string} whitespaceChar The capture group for a whitespace character.
- * @returns {string} Returns the escaped character.
- */
- function escapeRegExpChar(chr, leadingChar, whitespaceChar) {
- if (leadingChar) {
- chr = regexpEscapes[chr];
- } else if (whitespaceChar) {
- chr = stringEscapes[chr];
- }
- return '\\' + chr;
- }
-
- /**
- * Used by `_.template` to escape characters for inclusion in compiled string literals.
- *
- * @private
- * @param {string} chr The matched character to escape.
- * @returns {string} Returns the escaped character.
- */
- function escapeStringChar(chr) {
- return '\\' + stringEscapes[chr];
- }
-
- /**
- * Gets the index at which the first occurrence of `NaN` is found in `array`.
- *
- * @private
- * @param {Array} array The array to search.
- * @param {number} fromIndex The index to search from.
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {number} Returns the index of the matched `NaN`, else `-1`.
- */
- function indexOfNaN(array, fromIndex, fromRight) {
- var length = array.length,
- index = fromIndex + (fromRight ? 0 : -1);
-
- while ((fromRight ? index-- : ++index < length)) {
- var other = array[index];
- if (other !== other) {
- return index;
- }
- }
- return -1;
- }
-
- /**
- * Checks if `value` is object-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- */
- function isObjectLike(value) {
- return !!value && typeof value == 'object';
- }
-
- /**
- * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
- * character code is whitespace.
- *
- * @private
- * @param {number} charCode The character code to inspect.
- * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
- */
- function isSpace(charCode) {
- return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
- (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
- }
-
- /**
- * Replaces all `placeholder` elements in `array` with an internal placeholder
- * and returns an array of their indexes.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {*} placeholder The placeholder to replace.
- * @returns {Array} Returns the new array of placeholder indexes.
- */
- function replaceHolders(array, placeholder) {
- var index = -1,
- length = array.length,
- resIndex = -1,
- result = [];
-
- while (++index < length) {
- if (array[index] === placeholder) {
- array[index] = PLACEHOLDER;
- result[++resIndex] = index;
- }
- }
- return result;
- }
-
- /**
- * An implementation of `_.uniq` optimized for sorted arrays without support
- * for callback shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {Function} [iteratee] The function invoked per iteration.
- * @returns {Array} Returns the new duplicate-value-free array.
- */
- function sortedUniq(array, iteratee) {
- var seen,
- index = -1,
- length = array.length,
- resIndex = -1,
- result = [];
-
- while (++index < length) {
- var value = array[index],
- computed = iteratee ? iteratee(value, index, array) : value;
-
- if (!index || seen !== computed) {
- seen = computed;
- result[++resIndex] = value;
- }
- }
- return result;
- }
-
- /**
- * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
- * character of `string`.
- *
- * @private
- * @param {string} string The string to inspect.
- * @returns {number} Returns the index of the first non-whitespace character.
- */
- function trimmedLeftIndex(string) {
- var index = -1,
- length = string.length;
-
- while (++index < length && isSpace(string.charCodeAt(index))) {}
- return index;
- }
-
- /**
- * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
- * character of `string`.
- *
- * @private
- * @param {string} string The string to inspect.
- * @returns {number} Returns the index of the last non-whitespace character.
- */
- function trimmedRightIndex(string) {
- var index = string.length;
-
- while (index-- && isSpace(string.charCodeAt(index))) {}
- return index;
- }
-
- /**
- * Used by `_.unescape` to convert HTML entities to characters.
- *
- * @private
- * @param {string} chr The matched character to unescape.
- * @returns {string} Returns the unescaped character.
- */
- function unescapeHtmlChar(chr) {
- return htmlUnescapes[chr];
- }
-
- /*--------------------------------------------------------------------------*/
-
- /**
- * Create a new pristine `lodash` function using the given `context` object.
- *
- * @static
- * @memberOf _
- * @category Utility
- * @param {Object} [context=root] The context object.
- * @returns {Function} Returns a new `lodash` function.
- * @example
- *
- * _.mixin({ 'foo': _.constant('foo') });
- *
- * var lodash = _.runInContext();
- * lodash.mixin({ 'bar': lodash.constant('bar') });
- *
- * _.isFunction(_.foo);
- * // => true
- * _.isFunction(_.bar);
- * // => false
- *
- * lodash.isFunction(lodash.foo);
- * // => false
- * lodash.isFunction(lodash.bar);
- * // => true
- *
- * // using `context` to mock `Date#getTime` use in `_.now`
- * var mock = _.runInContext({
- * 'Date': function() {
- * return { 'getTime': getTimeMock };
- * }
- * });
- *
- * // or creating a suped-up `defer` in Node.js
- * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
- */
- function runInContext(context) {
- // Avoid issues with some ES3 environments that attempt to use values, named
- // after built-in constructors like `Object`, for the creation of literals.
- // ES5 clears this up by stating that literals must use built-in constructors.
- // See https://es5.github.io/#x11.1.5 for more details.
- context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
-
- /** Native constructor references. */
- var Array = context.Array,
- Date = context.Date,
- Error = context.Error,
- Function = context.Function,
- Math = context.Math,
- Number = context.Number,
- Object = context.Object,
- RegExp = context.RegExp,
- String = context.String,
- TypeError = context.TypeError;
-
- /** Used for native method references. */
- var arrayProto = Array.prototype,
- objectProto = Object.prototype,
- stringProto = String.prototype;
-
- /** Used to resolve the decompiled source of functions. */
- var fnToString = Function.prototype.toString;
-
- /** Used to check objects for own properties. */
- var hasOwnProperty = objectProto.hasOwnProperty;
-
- /** Used to generate unique IDs. */
- var idCounter = 0;
-
- /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
- * of values.
- */
- var objToString = objectProto.toString;
-
- /** Used to restore the original `_` reference in `_.noConflict`. */
- var oldDash = root._;
-
- /** Used to detect if a method is native. */
- var reIsNative = RegExp('^' +
- fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
- .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
- );
-
- /** Native method references. */
- var ArrayBuffer = context.ArrayBuffer,
- clearTimeout = context.clearTimeout,
- parseFloat = context.parseFloat,
- pow = Math.pow,
- propertyIsEnumerable = objectProto.propertyIsEnumerable,
- Set = getNative(context, 'Set'),
- setTimeout = context.setTimeout,
- splice = arrayProto.splice,
- Uint8Array = context.Uint8Array,
- WeakMap = getNative(context, 'WeakMap');
-
- /* Native method references for those with the same name as other `lodash` methods. */
- var nativeCeil = Math.ceil,
- nativeCreate = getNative(Object, 'create'),
- nativeFloor = Math.floor,
- nativeIsArray = getNative(Array, 'isArray'),
- nativeIsFinite = context.isFinite,
- nativeKeys = getNative(Object, 'keys'),
- nativeMax = Math.max,
- nativeMin = Math.min,
- nativeNow = getNative(Date, 'now'),
- nativeParseInt = context.parseInt,
- nativeRandom = Math.random;
-
- /** Used as references for `-Infinity` and `Infinity`. */
- var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
- POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
-
- /** Used as references for the maximum length and index of an array. */
- var MAX_ARRAY_LENGTH = 4294967295,
- MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
- HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
-
- /**
- * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
- * of an array-like value.
- */
- var MAX_SAFE_INTEGER = 9007199254740991;
-
- /** Used to store function metadata. */
- var metaMap = WeakMap && new WeakMap;
-
- /** Used to lookup unminified function names. */
- var realNames = {};
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a `lodash` object which wraps `value` to enable implicit chaining.
- * Methods that operate on and return arrays, collections, and functions can
- * be chained together. Methods that retrieve a single value or may return a
- * primitive value will automatically end the chain returning the unwrapped
- * value. Explicit chaining may be enabled using `_.chain`. The execution of
- * chained methods is lazy, that is, execution is deferred until `_#value`
- * is implicitly or explicitly called.
- *
- * Lazy evaluation allows several methods to support shortcut fusion. Shortcut
- * fusion is an optimization strategy which merge iteratee calls; this can help
- * to avoid the creation of intermediate data structures and greatly reduce the
- * number of iteratee executions.
- *
- * Chaining is supported in custom builds as long as the `_#value` method is
- * directly or indirectly included in the build.
- *
- * In addition to lodash methods, wrappers have `Array` and `String` methods.
- *
- * The wrapper `Array` methods are:
- * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`,
- * `splice`, and `unshift`
- *
- * The wrapper `String` methods are:
- * `replace` and `split`
- *
- * The wrapper methods that support shortcut fusion are:
- * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
- * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
- * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
- * and `where`
- *
- * The chainable wrapper methods are:
- * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
- * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
- * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defaultsDeep`,
- * `defer`, `delay`, `difference`, `drop`, `dropRight`, `dropRightWhile`,
- * `dropWhile`, `fill`, `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`,
- * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
- * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
- * `invoke`, `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`,
- * `matchesProperty`, `memoize`, `merge`, `method`, `methodOf`, `mixin`,
- * `modArgs`, `negate`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
- * `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
- * `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `restParam`,
- * `reverse`, `set`, `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`,
- * `sortByOrder`, `splice`, `spread`, `take`, `takeRight`, `takeRightWhile`,
- * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
- * `transform`, `union`, `uniq`, `unshift`, `unzip`, `unzipWith`, `values`,
- * `valuesIn`, `where`, `without`, `wrap`, `xor`, `zip`, `zipObject`, `zipWith`
- *
- * The wrapper methods that are **not** chainable by default are:
- * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clone`, `cloneDeep`,
- * `deburr`, `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`,
- * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`,
- * `floor`, `get`, `gt`, `gte`, `has`, `identity`, `includes`, `indexOf`,
- * `inRange`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
- * `isEmpty`, `isEqual`, `isError`, `isFinite` `isFunction`, `isMatch`,
- * `isNative`, `isNaN`, `isNull`, `isNumber`, `isObject`, `isPlainObject`,
- * `isRegExp`, `isString`, `isUndefined`, `isTypedArray`, `join`, `kebabCase`,
- * `last`, `lastIndexOf`, `lt`, `lte`, `max`, `min`, `noConflict`, `noop`,
- * `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`, `random`, `reduce`,
- * `reduceRight`, `repeat`, `result`, `round`, `runInContext`, `shift`, `size`,
- * `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`, `startCase`,
- * `startsWith`, `sum`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
- * `unescape`, `uniqueId`, `value`, and `words`
- *
- * The wrapper method `sample` will return a wrapped value when `n` is provided,
- * otherwise an unwrapped value is returned.
- *
- * @name _
- * @constructor
- * @category Chain
- * @param {*} value The value to wrap in a `lodash` instance.
- * @returns {Object} Returns the new `lodash` wrapper instance.
- * @example
- *
- * var wrapped = _([1, 2, 3]);
- *
- * // returns an unwrapped value
- * wrapped.reduce(function(total, n) {
- * return total + n;
- * });
- * // => 6
- *
- * // returns a wrapped value
- * var squares = wrapped.map(function(n) {
- * return n * n;
- * });
- *
- * _.isArray(squares);
- * // => false
- *
- * _.isArray(squares.value());
- * // => true
- */
- function lodash(value) {
- if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
- if (value instanceof LodashWrapper) {
- return value;
- }
- if (hasOwnProperty.call(value, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
- return wrapperClone(value);
- }
- }
- return new LodashWrapper(value);
- }
-
- /**
- * The function whose prototype all chaining wrappers inherit from.
- *
- * @private
- */
- function baseLodash() {
- // No operation performed.
- }
-
- /**
- * The base constructor for creating `lodash` wrapper objects.
- *
- * @private
- * @param {*} value The value to wrap.
- * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
- * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
- */
- function LodashWrapper(value, chainAll, actions) {
- this.__wrapped__ = value;
- this.__actions__ = actions || [];
- this.__chain__ = !!chainAll;
- }
-
- /**
- * An object environment feature flags.
- *
- * @static
- * @memberOf _
- * @type Object
- */
- var support = lodash.support = {};
-
- /**
- * By default, the template delimiters used by lodash are like those in
- * embedded Ruby (ERB). Change the following template settings to use
- * alternative delimiters.
- *
- * @static
- * @memberOf _
- * @type Object
- */
- lodash.templateSettings = {
-
- /**
- * Used to detect `data` property values to be HTML-escaped.
- *
- * @memberOf _.templateSettings
- * @type RegExp
- */
- 'escape': reEscape,
-
- /**
- * Used to detect code to be evaluated.
- *
- * @memberOf _.templateSettings
- * @type RegExp
- */
- 'evaluate': reEvaluate,
-
- /**
- * Used to detect `data` property values to inject.
- *
- * @memberOf _.templateSettings
- * @type RegExp
- */
- 'interpolate': reInterpolate,
-
- /**
- * Used to reference the data object in the template text.
- *
- * @memberOf _.templateSettings
- * @type string
- */
- 'variable': '',
-
- /**
- * Used to import variables into the compiled template.
- *
- * @memberOf _.templateSettings
- * @type Object
- */
- 'imports': {
-
- /**
- * A reference to the `lodash` function.
- *
- * @memberOf _.templateSettings.imports
- * @type Function
- */
- '_': lodash
- }
- };
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
- *
- * @private
- * @param {*} value The value to wrap.
- */
- function LazyWrapper(value) {
- this.__wrapped__ = value;
- this.__actions__ = [];
- this.__dir__ = 1;
- this.__filtered__ = false;
- this.__iteratees__ = [];
- this.__takeCount__ = POSITIVE_INFINITY;
- this.__views__ = [];
- }
-
- /**
- * Creates a clone of the lazy wrapper object.
- *
- * @private
- * @name clone
- * @memberOf LazyWrapper
- * @returns {Object} Returns the cloned `LazyWrapper` object.
- */
- function lazyClone() {
- var result = new LazyWrapper(this.__wrapped__);
- result.__actions__ = arrayCopy(this.__actions__);
- result.__dir__ = this.__dir__;
- result.__filtered__ = this.__filtered__;
- result.__iteratees__ = arrayCopy(this.__iteratees__);
- result.__takeCount__ = this.__takeCount__;
- result.__views__ = arrayCopy(this.__views__);
- return result;
- }
-
- /**
- * Reverses the direction of lazy iteration.
- *
- * @private
- * @name reverse
- * @memberOf LazyWrapper
- * @returns {Object} Returns the new reversed `LazyWrapper` object.
- */
- function lazyReverse() {
- if (this.__filtered__) {
- var result = new LazyWrapper(this);
- result.__dir__ = -1;
- result.__filtered__ = true;
- } else {
- result = this.clone();
- result.__dir__ *= -1;
- }
- return result;
- }
-
- /**
- * Extracts the unwrapped value from its lazy wrapper.
- *
- * @private
- * @name value
- * @memberOf LazyWrapper
- * @returns {*} Returns the unwrapped value.
- */
- function lazyValue() {
- var array = this.__wrapped__.value(),
- dir = this.__dir__,
- isArr = isArray(array),
- isRight = dir < 0,
- arrLength = isArr ? array.length : 0,
- view = getView(0, arrLength, this.__views__),
- start = view.start,
- end = view.end,
- length = end - start,
- index = isRight ? end : (start - 1),
- iteratees = this.__iteratees__,
- iterLength = iteratees.length,
- resIndex = 0,
- takeCount = nativeMin(length, this.__takeCount__);
-
- if (!isArr || arrLength < LARGE_ARRAY_SIZE || (arrLength == length && takeCount == length)) {
- return baseWrapperValue((isRight && isArr) ? array.reverse() : array, this.__actions__);
- }
- var result = [];
-
- outer:
- while (length-- && resIndex < takeCount) {
- index += dir;
-
- var iterIndex = -1,
- value = array[index];
-
- while (++iterIndex < iterLength) {
- var data = iteratees[iterIndex],
- iteratee = data.iteratee,
- type = data.type,
- computed = iteratee(value);
-
- if (type == LAZY_MAP_FLAG) {
- value = computed;
- } else if (!computed) {
- if (type == LAZY_FILTER_FLAG) {
- continue outer;
- } else {
- break outer;
- }
- }
- }
- result[resIndex++] = value;
- }
- return result;
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a cache object to store key/value pairs.
- *
- * @private
- * @static
- * @name Cache
- * @memberOf _.memoize
- */
- function MapCache() {
- this.__data__ = {};
- }
-
- /**
- * Removes `key` and its value from the cache.
- *
- * @private
- * @name delete
- * @memberOf _.memoize.Cache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
- */
- function mapDelete(key) {
- return this.has(key) && delete this.__data__[key];
- }
-
- /**
- * Gets the cached value for `key`.
- *
- * @private
- * @name get
- * @memberOf _.memoize.Cache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the cached value.
- */
- function mapGet(key) {
- return key == '__proto__' ? undefined : this.__data__[key];
- }
-
- /**
- * Checks if a cached value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf _.memoize.Cache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
- function mapHas(key) {
- return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
- }
-
- /**
- * Sets `value` to `key` of the cache.
- *
- * @private
- * @name set
- * @memberOf _.memoize.Cache
- * @param {string} key The key of the value to cache.
- * @param {*} value The value to cache.
- * @returns {Object} Returns the cache object.
- */
- function mapSet(key, value) {
- if (key != '__proto__') {
- this.__data__[key] = value;
- }
- return this;
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- *
- * Creates a cache object to store unique values.
- *
- * @private
- * @param {Array} [values] The values to cache.
- */
- function SetCache(values) {
- var length = values ? values.length : 0;
-
- this.data = { 'hash': nativeCreate(null), 'set': new Set };
- while (length--) {
- this.push(values[length]);
- }
- }
-
- /**
- * Checks if `value` is in `cache` mimicking the return signature of
- * `_.indexOf` by returning `0` if the value is found, else `-1`.
- *
- * @private
- * @param {Object} cache The cache to search.
- * @param {*} value The value to search for.
- * @returns {number} Returns `0` if `value` is found, else `-1`.
- */
- function cacheIndexOf(cache, value) {
- var data = cache.data,
- result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];
-
- return result ? 0 : -1;
- }
-
- /**
- * Adds `value` to the cache.
- *
- * @private
- * @name push
- * @memberOf SetCache
- * @param {*} value The value to cache.
- */
- function cachePush(value) {
- var data = this.data;
- if (typeof value == 'string' || isObject(value)) {
- data.set.add(value);
- } else {
- data.hash[value] = true;
- }
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a new array joining `array` with `other`.
- *
- * @private
- * @param {Array} array The array to join.
- * @param {Array} other The other array to join.
- * @returns {Array} Returns the new concatenated array.
- */
- function arrayConcat(array, other) {
- var index = -1,
- length = array.length,
- othIndex = -1,
- othLength = other.length,
- result = Array(length + othLength);
-
- while (++index < length) {
- result[index] = array[index];
- }
- while (++othIndex < othLength) {
- result[index++] = other[othIndex];
- }
- return result;
- }
-
- /**
- * Copies the values of `source` to `array`.
- *
- * @private
- * @param {Array} source The array to copy values from.
- * @param {Array} [array=[]] The array to copy values to.
- * @returns {Array} Returns `array`.
- */
- function arrayCopy(source, array) {
- var index = -1,
- length = source.length;
-
- array || (array = Array(length));
- while (++index < length) {
- array[index] = source[index];
- }
- return array;
- }
-
- /**
- * A specialized version of `_.forEach` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns `array`.
- */
- function arrayEach(array, iteratee) {
- var index = -1,
- length = array.length;
-
- while (++index < length) {
- if (iteratee(array[index], index, array) === false) {
- break;
- }
- }
- return array;
- }
-
- /**
- * A specialized version of `_.forEachRight` for arrays without support for
- * callback shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns `array`.
- */
- function arrayEachRight(array, iteratee) {
- var length = array.length;
-
- while (length--) {
- if (iteratee(array[length], length, array) === false) {
- break;
- }
- }
- return array;
- }
-
- /**
- * A specialized version of `_.every` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {boolean} Returns `true` if all elements pass the predicate check,
- * else `false`.
- */
- function arrayEvery(array, predicate) {
- var index = -1,
- length = array.length;
-
- while (++index < length) {
- if (!predicate(array[index], index, array)) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * A specialized version of `baseExtremum` for arrays which invokes `iteratee`
- * with one argument: (value).
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {Function} comparator The function used to compare values.
- * @param {*} exValue The initial extremum value.
- * @returns {*} Returns the extremum value.
- */
- function arrayExtremum(array, iteratee, comparator, exValue) {
- var index = -1,
- length = array.length,
- computed = exValue,
- result = computed;
-
- while (++index < length) {
- var value = array[index],
- current = +iteratee(value);
-
- if (comparator(current, computed)) {
- computed = current;
- result = value;
- }
- }
- return result;
- }
-
- /**
- * A specialized version of `_.filter` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {Array} Returns the new filtered array.
- */
- function arrayFilter(array, predicate) {
- var index = -1,
- length = array.length,
- resIndex = -1,
- result = [];
-
- while (++index < length) {
- var value = array[index];
- if (predicate(value, index, array)) {
- result[++resIndex] = value;
- }
- }
- return result;
- }
-
- /**
- * A specialized version of `_.map` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the new mapped array.
- */
- function arrayMap(array, iteratee) {
- var index = -1,
- length = array.length,
- result = Array(length);
-
- while (++index < length) {
- result[index] = iteratee(array[index], index, array);
- }
- return result;
- }
-
- /**
- * Appends the elements of `values` to `array`.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {Array} values The values to append.
- * @returns {Array} Returns `array`.
- */
- function arrayPush(array, values) {
- var index = -1,
- length = values.length,
- offset = array.length;
-
- while (++index < length) {
- array[offset + index] = values[index];
- }
- return array;
- }
-
- /**
- * A specialized version of `_.reduce` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {boolean} [initFromArray] Specify using the first element of `array`
- * as the initial value.
- * @returns {*} Returns the accumulated value.
- */
- function arrayReduce(array, iteratee, accumulator, initFromArray) {
- var index = -1,
- length = array.length;
-
- if (initFromArray && length) {
- accumulator = array[++index];
- }
- while (++index < length) {
- accumulator = iteratee(accumulator, array[index], index, array);
- }
- return accumulator;
- }
-
- /**
- * A specialized version of `_.reduceRight` for arrays without support for
- * callback shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {boolean} [initFromArray] Specify using the last element of `array`
- * as the initial value.
- * @returns {*} Returns the accumulated value.
- */
- function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
- var length = array.length;
- if (initFromArray && length) {
- accumulator = array[--length];
- }
- while (length--) {
- accumulator = iteratee(accumulator, array[length], length, array);
- }
- return accumulator;
- }
-
- /**
- * A specialized version of `_.some` for arrays without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {boolean} Returns `true` if any element passes the predicate check,
- * else `false`.
- */
- function arraySome(array, predicate) {
- var index = -1,
- length = array.length;
-
- while (++index < length) {
- if (predicate(array[index], index, array)) {
- return true;
- }
- }
- return false;
- }
-
- /**
- * A specialized version of `_.sum` for arrays without support for callback
- * shorthands and `this` binding..
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {number} Returns the sum.
- */
- function arraySum(array, iteratee) {
- var length = array.length,
- result = 0;
-
- while (length--) {
- result += +iteratee(array[length]) || 0;
- }
- return result;
- }
-
- /**
- * Used by `_.defaults` to customize its `_.assign` use.
- *
- * @private
- * @param {*} objectValue The destination object property value.
- * @param {*} sourceValue The source object property value.
- * @returns {*} Returns the value to assign to the destination object.
- */
- function assignDefaults(objectValue, sourceValue) {
- return objectValue === undefined ? sourceValue : objectValue;
- }
-
- /**
- * Used by `_.template` to customize its `_.assign` use.
- *
- * **Note:** This function is like `assignDefaults` except that it ignores
- * inherited property values when checking if a property is `undefined`.
- *
- * @private
- * @param {*} objectValue The destination object property value.
- * @param {*} sourceValue The source object property value.
- * @param {string} key The key associated with the object and source values.
- * @param {Object} object The destination object.
- * @returns {*} Returns the value to assign to the destination object.
- */
- function assignOwnDefaults(objectValue, sourceValue, key, object) {
- return (objectValue === undefined || !hasOwnProperty.call(object, key))
- ? sourceValue
- : objectValue;
- }
-
- /**
- * A specialized version of `_.assign` for customizing assigned values without
- * support for argument juggling, multiple sources, and `this` binding `customizer`
- * functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {Function} customizer The function to customize assigned values.
- * @returns {Object} Returns `object`.
- */
- function assignWith(object, source, customizer) {
- var index = -1,
- props = keys(source),
- length = props.length;
-
- while (++index < length) {
- var key = props[index],
- value = object[key],
- result = customizer(value, source[key], key, object, source);
-
- if ((result === result ? (result !== value) : (value === value)) ||
- (value === undefined && !(key in object))) {
- object[key] = result;
- }
- }
- return object;
- }
-
- /**
- * The base implementation of `_.assign` without support for argument juggling,
- * multiple sources, and `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @returns {Object} Returns `object`.
- */
- function baseAssign(object, source) {
- return source == null
- ? object
- : baseCopy(source, keys(source), object);
- }
-
- /**
- * The base implementation of `_.at` without support for string collections
- * and individual key arguments.
- *
- * @private
- * @param {Array|Object} collection The collection to iterate over.
- * @param {number[]|string[]} props The property names or indexes of elements to pick.
- * @returns {Array} Returns the new array of picked elements.
- */
- function baseAt(collection, props) {
- var index = -1,
- isNil = collection == null,
- isArr = !isNil && isArrayLike(collection),
- length = isArr ? collection.length : 0,
- propsLength = props.length,
- result = Array(propsLength);
-
- while(++index < propsLength) {
- var key = props[index];
- if (isArr) {
- result[index] = isIndex(key, length) ? collection[key] : undefined;
- } else {
- result[index] = isNil ? undefined : collection[key];
- }
- }
- return result;
- }
-
- /**
- * Copies properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property names to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @returns {Object} Returns `object`.
- */
- function baseCopy(source, props, object) {
- object || (object = {});
-
- var index = -1,
- length = props.length;
-
- while (++index < length) {
- var key = props[index];
- object[key] = source[key];
- }
- return object;
- }
-
- /**
- * The base implementation of `_.callback` which supports specifying the
- * number of arguments to provide to `func`.
- *
- * @private
- * @param {*} [func=_.identity] The value to convert to a callback.
- * @param {*} [thisArg] The `this` binding of `func`.
- * @param {number} [argCount] The number of arguments to provide to `func`.
- * @returns {Function} Returns the callback.
- */
- function baseCallback(func, thisArg, argCount) {
- var type = typeof func;
- if (type == 'function') {
- return thisArg === undefined
- ? func
- : bindCallback(func, thisArg, argCount);
- }
- if (func == null) {
- return identity;
- }
- if (type == 'object') {
- return baseMatches(func);
- }
- return thisArg === undefined
- ? property(func)
- : baseMatchesProperty(func, thisArg);
- }
-
- /**
- * The base implementation of `_.clone` without support for argument juggling
- * and `this` binding `customizer` functions.
- *
- * @private
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @param {Function} [customizer] The function to customize cloning values.
- * @param {string} [key] The key of `value`.
- * @param {Object} [object] The object `value` belongs to.
- * @param {Array} [stackA=[]] Tracks traversed source objects.
- * @param {Array} [stackB=[]] Associates clones with source counterparts.
- * @returns {*} Returns the cloned value.
- */
- function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
- var result;
- if (customizer) {
- result = object ? customizer(value, key, object) : customizer(value);
- }
- if (result !== undefined) {
- return result;
- }
- if (!isObject(value)) {
- return value;
- }
- var isArr = isArray(value);
- if (isArr) {
- result = initCloneArray(value);
- if (!isDeep) {
- return arrayCopy(value, result);
- }
- } else {
- var tag = objToString.call(value),
- isFunc = tag == funcTag;
-
- if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
- result = initCloneObject(isFunc ? {} : value);
- if (!isDeep) {
- return baseAssign(result, value);
- }
- } else {
- return cloneableTags[tag]
- ? initCloneByTag(value, tag, isDeep)
- : (object ? value : {});
- }
- }
- // Check for circular references and return its corresponding clone.
- stackA || (stackA = []);
- stackB || (stackB = []);
-
- var length = stackA.length;
- while (length--) {
- if (stackA[length] == value) {
- return stackB[length];
- }
- }
- // Add the source value to the stack of traversed objects and associate it with its clone.
- stackA.push(value);
- stackB.push(result);
-
- // Recursively populate clone (susceptible to call stack limits).
- (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
- result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
- });
- return result;
- }
-
- /**
- * The base implementation of `_.create` without support for assigning
- * properties to the created object.
- *
- * @private
- * @param {Object} prototype The object to inherit from.
- * @returns {Object} Returns the new object.
- */
- var baseCreate = (function() {
- function object() {}
- return function(prototype) {
- if (isObject(prototype)) {
- object.prototype = prototype;
- var result = new object;
- object.prototype = undefined;
- }
- return result || {};
- };
- }());
-
- /**
- * The base implementation of `_.delay` and `_.defer` which accepts an index
- * of where to slice the arguments to provide to `func`.
- *
- * @private
- * @param {Function} func The function to delay.
- * @param {number} wait The number of milliseconds to delay invocation.
- * @param {Object} args The arguments provide to `func`.
- * @returns {number} Returns the timer id.
- */
- function baseDelay(func, wait, args) {
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- return setTimeout(function() { func.apply(undefined, args); }, wait);
- }
-
- /**
- * The base implementation of `_.difference` which accepts a single array
- * of values to exclude.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {Array} values The values to exclude.
- * @returns {Array} Returns the new array of filtered values.
- */
- function baseDifference(array, values) {
- var length = array ? array.length : 0,
- result = [];
-
- if (!length) {
- return result;
- }
- var index = -1,
- indexOf = getIndexOf(),
- isCommon = indexOf == baseIndexOf,
- cache = (isCommon && values.length >= LARGE_ARRAY_SIZE) ? createCache(values) : null,
- valuesLength = values.length;
-
- if (cache) {
- indexOf = cacheIndexOf;
- isCommon = false;
- values = cache;
- }
- outer:
- while (++index < length) {
- var value = array[index];
-
- if (isCommon && value === value) {
- var valuesIndex = valuesLength;
- while (valuesIndex--) {
- if (values[valuesIndex] === value) {
- continue outer;
- }
- }
- result.push(value);
- }
- else if (indexOf(values, value, 0) < 0) {
- result.push(value);
- }
- }
- return result;
- }
-
- /**
- * The base implementation of `_.forEach` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array|Object|string} Returns `collection`.
- */
- var baseEach = createBaseEach(baseForOwn);
-
- /**
- * The base implementation of `_.forEachRight` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array|Object|string} Returns `collection`.
- */
- var baseEachRight = createBaseEach(baseForOwnRight, true);
-
- /**
- * The base implementation of `_.every` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {boolean} Returns `true` if all elements pass the predicate check,
- * else `false`
- */
- function baseEvery(collection, predicate) {
- var result = true;
- baseEach(collection, function(value, index, collection) {
- result = !!predicate(value, index, collection);
- return result;
- });
- return result;
- }
-
- /**
- * Gets the extremum value of `collection` invoking `iteratee` for each value
- * in `collection` to generate the criterion by which the value is ranked.
- * The `iteratee` is invoked with three arguments: (value, index|key, collection).
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {Function} comparator The function used to compare values.
- * @param {*} exValue The initial extremum value.
- * @returns {*} Returns the extremum value.
- */
- function baseExtremum(collection, iteratee, comparator, exValue) {
- var computed = exValue,
- result = computed;
-
- baseEach(collection, function(value, index, collection) {
- var current = +iteratee(value, index, collection);
- if (comparator(current, computed) || (current === exValue && current === result)) {
- computed = current;
- result = value;
- }
- });
- return result;
- }
-
- /**
- * The base implementation of `_.fill` without an iteratee call guard.
- *
- * @private
- * @param {Array} array The array to fill.
- * @param {*} value The value to fill `array` with.
- * @param {number} [start=0] The start position.
- * @param {number} [end=array.length] The end position.
- * @returns {Array} Returns `array`.
- */
- function baseFill(array, value, start, end) {
- var length = array.length;
-
- start = start == null ? 0 : (+start || 0);
- if (start < 0) {
- start = -start > length ? 0 : (length + start);
- }
- end = (end === undefined || end > length) ? length : (+end || 0);
- if (end < 0) {
- end += length;
- }
- length = start > end ? 0 : (end >>> 0);
- start >>>= 0;
-
- while (start < length) {
- array[start++] = value;
- }
- return array;
- }
-
- /**
- * The base implementation of `_.filter` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {Array} Returns the new filtered array.
- */
- function baseFilter(collection, predicate) {
- var result = [];
- baseEach(collection, function(value, index, collection) {
- if (predicate(value, index, collection)) {
- result.push(value);
- }
- });
- return result;
- }
-
- /**
- * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
- * without support for callback shorthands and `this` binding, which iterates
- * over `collection` using the provided `eachFunc`.
- *
- * @private
- * @param {Array|Object|string} collection The collection to search.
- * @param {Function} predicate The function invoked per iteration.
- * @param {Function} eachFunc The function to iterate over `collection`.
- * @param {boolean} [retKey] Specify returning the key of the found element
- * instead of the element itself.
- * @returns {*} Returns the found element or its key, else `undefined`.
- */
- function baseFind(collection, predicate, eachFunc, retKey) {
- var result;
- eachFunc(collection, function(value, key, collection) {
- if (predicate(value, key, collection)) {
- result = retKey ? key : value;
- return false;
- }
- });
- return result;
- }
-
- /**
- * The base implementation of `_.flatten` with added support for restricting
- * flattening and specifying the start index.
- *
- * @private
- * @param {Array} array The array to flatten.
- * @param {boolean} [isDeep] Specify a deep flatten.
- * @param {boolean} [isStrict] Restrict flattening to arrays-like objects.
- * @param {Array} [result=[]] The initial result value.
- * @returns {Array} Returns the new flattened array.
- */
- function baseFlatten(array, isDeep, isStrict, result) {
- result || (result = []);
-
- var index = -1,
- length = array.length;
-
- while (++index < length) {
- var value = array[index];
- if (isObjectLike(value) && isArrayLike(value) &&
- (isStrict || isArray(value) || isArguments(value))) {
- if (isDeep) {
- // Recursively flatten arrays (susceptible to call stack limits).
- baseFlatten(value, isDeep, isStrict, result);
- } else {
- arrayPush(result, value);
- }
- } else if (!isStrict) {
- result[result.length] = value;
- }
- }
- return result;
- }
-
- /**
- * The base implementation of `baseForIn` and `baseForOwn` which iterates
- * over `object` properties returned by `keysFunc` invoking `iteratee` for
- * each property. Iteratee functions may exit iteration early by explicitly
- * returning `false`.
- *
- * @private
- * @param {Object} object The object to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @returns {Object} Returns `object`.
- */
- var baseFor = createBaseFor();
-
- /**
- * This function is like `baseFor` except that it iterates over properties
- * in the opposite order.
- *
- * @private
- * @param {Object} object The object to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @returns {Object} Returns `object`.
- */
- var baseForRight = createBaseFor(true);
-
- /**
- * The base implementation of `_.forIn` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Object} object The object to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Object} Returns `object`.
- */
- function baseForIn(object, iteratee) {
- return baseFor(object, iteratee, keysIn);
- }
-
- /**
- * The base implementation of `_.forOwn` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Object} object The object to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Object} Returns `object`.
- */
- function baseForOwn(object, iteratee) {
- return baseFor(object, iteratee, keys);
- }
-
- /**
- * The base implementation of `_.forOwnRight` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Object} object The object to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Object} Returns `object`.
- */
- function baseForOwnRight(object, iteratee) {
- return baseForRight(object, iteratee, keys);
- }
-
- /**
- * The base implementation of `_.functions` which creates an array of
- * `object` function property names filtered from those provided.
- *
- * @private
- * @param {Object} object The object to inspect.
- * @param {Array} props The property names to filter.
- * @returns {Array} Returns the new array of filtered property names.
- */
- function baseFunctions(object, props) {
- var index = -1,
- length = props.length,
- resIndex = -1,
- result = [];
-
- while (++index < length) {
- var key = props[index];
- if (isFunction(object[key])) {
- result[++resIndex] = key;
- }
- }
- return result;
- }
-
- /**
- * The base implementation of `get` without support for string paths
- * and default values.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Array} path The path of the property to get.
- * @param {string} [pathKey] The key representation of path.
- * @returns {*} Returns the resolved value.
- */
- function baseGet(object, path, pathKey) {
- if (object == null) {
- return;
- }
- if (pathKey !== undefined && pathKey in toObject(object)) {
- path = [pathKey];
- }
- var index = 0,
- length = path.length;
-
- while (object != null && index < length) {
- object = object[path[index++]];
- }
- return (index && index == length) ? object : undefined;
- }
-
- /**
- * The base implementation of `_.isEqual` without support for `this` binding
- * `customizer` functions.
- *
- * @private
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @param {Function} [customizer] The function to customize comparing values.
- * @param {boolean} [isLoose] Specify performing partial comparisons.
- * @param {Array} [stackA] Tracks traversed `value` objects.
- * @param {Array} [stackB] Tracks traversed `other` objects.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- */
- function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
- if (value === other) {
- return true;
- }
- if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
- return value !== value && other !== other;
- }
- return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
- }
-
- /**
- * A specialized version of `baseIsEqual` for arrays and objects which performs
- * deep comparisons and tracks traversed objects enabling objects with circular
- * references to be compared.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Function} [customizer] The function to customize comparing objects.
- * @param {boolean} [isLoose] Specify performing partial comparisons.
- * @param {Array} [stackA=[]] Tracks traversed `value` objects.
- * @param {Array} [stackB=[]] Tracks traversed `other` objects.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
- function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
- var objIsArr = isArray(object),
- othIsArr = isArray(other),
- objTag = arrayTag,
- othTag = arrayTag;
-
- if (!objIsArr) {
- objTag = objToString.call(object);
- if (objTag == argsTag) {
- objTag = objectTag;
- } else if (objTag != objectTag) {
- objIsArr = isTypedArray(object);
- }
- }
- if (!othIsArr) {
- othTag = objToString.call(other);
- if (othTag == argsTag) {
- othTag = objectTag;
- } else if (othTag != objectTag) {
- othIsArr = isTypedArray(other);
- }
- }
- var objIsObj = objTag == objectTag,
- othIsObj = othTag == objectTag,
- isSameTag = objTag == othTag;
-
- if (isSameTag && !(objIsArr || objIsObj)) {
- return equalByTag(object, other, objTag);
- }
- if (!isLoose) {
- var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
- othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
-
- if (objIsWrapped || othIsWrapped) {
- return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
- }
- }
- if (!isSameTag) {
- return false;
- }
- // Assume cyclic values are equal.
- // For more information on detecting circular references see https://es5.github.io/#JO.
- stackA || (stackA = []);
- stackB || (stackB = []);
-
- var length = stackA.length;
- while (length--) {
- if (stackA[length] == object) {
- return stackB[length] == other;
- }
- }
- // Add `object` and `other` to the stack of traversed objects.
- stackA.push(object);
- stackB.push(other);
-
- var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);
-
- stackA.pop();
- stackB.pop();
-
- return result;
- }
-
- /**
- * The base implementation of `_.isMatch` without support for callback
- * shorthands and `this` binding.
- *
- * @private
- * @param {Object} object The object to inspect.
- * @param {Array} matchData The propery names, values, and compare flags to match.
- * @param {Function} [customizer] The function to customize comparing objects.
- * @returns {boolean} Returns `true` if `object` is a match, else `false`.
- */
- function baseIsMatch(object, matchData, customizer) {
- var index = matchData.length,
- length = index,
- noCustomizer = !customizer;
-
- if (object == null) {
- return !length;
- }
- object = toObject(object);
- while (index--) {
- var data = matchData[index];
- if ((noCustomizer && data[2])
- ? data[1] !== object[data[0]]
- : !(data[0] in object)
- ) {
- return false;
- }
- }
- while (++index < length) {
- data = matchData[index];
- var key = data[0],
- objValue = object[key],
- srcValue = data[1];
-
- if (noCustomizer && data[2]) {
- if (objValue === undefined && !(key in object)) {
- return false;
- }
- } else {
- var result = customizer ? customizer(objValue, srcValue, key) : undefined;
- if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
- return false;
- }
- }
- }
- return true;
- }
-
- /**
- * The base implementation of `_.map` without support for callback shorthands
- * and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the new mapped array.
- */
- function baseMap(collection, iteratee) {
- var index = -1,
- result = isArrayLike(collection) ? Array(collection.length) : [];
-
- baseEach(collection, function(value, key, collection) {
- result[++index] = iteratee(value, key, collection);
- });
- return result;
- }
-
- /**
- * The base implementation of `_.matches` which does not clone `source`.
- *
- * @private
- * @param {Object} source The object of property values to match.
- * @returns {Function} Returns the new function.
- */
- function baseMatches(source) {
- var matchData = getMatchData(source);
- if (matchData.length == 1 && matchData[0][2]) {
- var key = matchData[0][0],
- value = matchData[0][1];
-
- return function(object) {
- if (object == null) {
- return false;
- }
- return object[key] === value && (value !== undefined || (key in toObject(object)));
- };
- }
- return function(object) {
- return baseIsMatch(object, matchData);
- };
- }
-
- /**
- * The base implementation of `_.matchesProperty` which does not clone `srcValue`.
- *
- * @private
- * @param {string} path The path of the property to get.
- * @param {*} srcValue The value to compare.
- * @returns {Function} Returns the new function.
- */
- function baseMatchesProperty(path, srcValue) {
- var isArr = isArray(path),
- isCommon = isKey(path) && isStrictComparable(srcValue),
- pathKey = (path + '');
-
- path = toPath(path);
- return function(object) {
- if (object == null) {
- return false;
- }
- var key = pathKey;
- object = toObject(object);
- if ((isArr || !isCommon) && !(key in object)) {
- object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
- if (object == null) {
- return false;
- }
- key = last(path);
- object = toObject(object);
- }
- return object[key] === srcValue
- ? (srcValue !== undefined || (key in object))
- : baseIsEqual(srcValue, object[key], undefined, true);
- };
- }
-
- /**
- * The base implementation of `_.merge` without support for argument juggling,
- * multiple sources, and `this` binding `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {Function} [customizer] The function to customize merged values.
- * @param {Array} [stackA=[]] Tracks traversed source objects.
- * @param {Array} [stackB=[]] Associates values with source counterparts.
- * @returns {Object} Returns `object`.
- */
- function baseMerge(object, source, customizer, stackA, stackB) {
- if (!isObject(object)) {
- return object;
- }
- var isSrcArr = isArrayLike(source) && (isArray(source) || isTypedArray(source)),
- props = isSrcArr ? undefined : keys(source);
-
- arrayEach(props || source, function(srcValue, key) {
- if (props) {
- key = srcValue;
- srcValue = source[key];
- }
- if (isObjectLike(srcValue)) {
- stackA || (stackA = []);
- stackB || (stackB = []);
- baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
- }
- else {
- var value = object[key],
- result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
- isCommon = result === undefined;
-
- if (isCommon) {
- result = srcValue;
- }
- if ((result !== undefined || (isSrcArr && !(key in object))) &&
- (isCommon || (result === result ? (result !== value) : (value === value)))) {
- object[key] = result;
- }
- }
- });
- return object;
- }
-
- /**
- * A specialized version of `baseMerge` for arrays and objects which performs
- * deep merges and tracks traversed objects enabling objects with circular
- * references to be merged.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {string} key The key of the value to merge.
- * @param {Function} mergeFunc The function to merge values.
- * @param {Function} [customizer] The function to customize merged values.
- * @param {Array} [stackA=[]] Tracks traversed source objects.
- * @param {Array} [stackB=[]] Associates values with source counterparts.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
- function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
- var length = stackA.length,
- srcValue = source[key];
-
- while (length--) {
- if (stackA[length] == srcValue) {
- object[key] = stackB[length];
- return;
- }
- }
- var value = object[key],
- result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
- isCommon = result === undefined;
-
- if (isCommon) {
- result = srcValue;
- if (isArrayLike(srcValue) && (isArray(srcValue) || isTypedArray(srcValue))) {
- result = isArray(value)
- ? value
- : (isArrayLike(value) ? arrayCopy(value) : []);
- }
- else if (isPlainObject(srcValue) || isArguments(srcValue)) {
- result = isArguments(value)
- ? toPlainObject(value)
- : (isPlainObject(value) ? value : {});
- }
- else {
- isCommon = false;
- }
- }
- // Add the source value to the stack of traversed objects and associate
- // it with its merged value.
- stackA.push(srcValue);
- stackB.push(result);
-
- if (isCommon) {
- // Recursively merge objects and arrays (susceptible to call stack limits).
- object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
- } else if (result === result ? (result !== value) : (value === value)) {
- object[key] = result;
- }
- }
-
- /**
- * The base implementation of `_.property` without support for deep paths.
- *
- * @private
- * @param {string} key The key of the property to get.
- * @returns {Function} Returns the new function.
- */
- function baseProperty(key) {
- return function(object) {
- return object == null ? undefined : object[key];
- };
- }
-
- /**
- * A specialized version of `baseProperty` which supports deep paths.
- *
- * @private
- * @param {Array|string} path The path of the property to get.
- * @returns {Function} Returns the new function.
- */
- function basePropertyDeep(path) {
- var pathKey = (path + '');
- path = toPath(path);
- return function(object) {
- return baseGet(object, path, pathKey);
- };
- }
-
- /**
- * The base implementation of `_.pullAt` without support for individual
- * index arguments and capturing the removed elements.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {number[]} indexes The indexes of elements to remove.
- * @returns {Array} Returns `array`.
- */
- function basePullAt(array, indexes) {
- var length = array ? indexes.length : 0;
- while (length--) {
- var index = indexes[length];
- if (index != previous && isIndex(index)) {
- var previous = index;
- splice.call(array, index, 1);
- }
- }
- return array;
- }
-
- /**
- * The base implementation of `_.random` without support for argument juggling
- * and returning floating-point numbers.
- *
- * @private
- * @param {number} min The minimum possible value.
- * @param {number} max The maximum possible value.
- * @returns {number} Returns the random number.
- */
- function baseRandom(min, max) {
- return min + nativeFloor(nativeRandom() * (max - min + 1));
- }
-
- /**
- * The base implementation of `_.reduce` and `_.reduceRight` without support
- * for callback shorthands and `this` binding, which iterates over `collection`
- * using the provided `eachFunc`.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} accumulator The initial value.
- * @param {boolean} initFromCollection Specify using the first or last element
- * of `collection` as the initial value.
- * @param {Function} eachFunc The function to iterate over `collection`.
- * @returns {*} Returns the accumulated value.
- */
- function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
- eachFunc(collection, function(value, index, collection) {
- accumulator = initFromCollection
- ? (initFromCollection = false, value)
- : iteratee(accumulator, value, index, collection);
- });
- return accumulator;
- }
-
- /**
- * The base implementation of `setData` without support for hot loop detection.
- *
- * @private
- * @param {Function} func The function to associate metadata with.
- * @param {*} data The metadata.
- * @returns {Function} Returns `func`.
- */
- var baseSetData = !metaMap ? identity : function(func, data) {
- metaMap.set(func, data);
- return func;
- };
-
- /**
- * The base implementation of `_.slice` without an iteratee call guard.
- *
- * @private
- * @param {Array} array The array to slice.
- * @param {number} [start=0] The start position.
- * @param {number} [end=array.length] The end position.
- * @returns {Array} Returns the slice of `array`.
- */
- function baseSlice(array, start, end) {
- var index = -1,
- length = array.length;
-
- start = start == null ? 0 : (+start || 0);
- if (start < 0) {
- start = -start > length ? 0 : (length + start);
- }
- end = (end === undefined || end > length) ? length : (+end || 0);
- if (end < 0) {
- end += length;
- }
- length = start > end ? 0 : ((end - start) >>> 0);
- start >>>= 0;
-
- var result = Array(length);
- while (++index < length) {
- result[index] = array[index + start];
- }
- return result;
- }
-
- /**
- * The base implementation of `_.some` without support for callback shorthands
- * and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {boolean} Returns `true` if any element passes the predicate check,
- * else `false`.
- */
- function baseSome(collection, predicate) {
- var result;
-
- baseEach(collection, function(value, index, collection) {
- result = predicate(value, index, collection);
- return !result;
- });
- return !!result;
- }
-
- /**
- * The base implementation of `_.sortBy` which uses `comparer` to define
- * the sort order of `array` and replaces criteria objects with their
- * corresponding values.
- *
- * @private
- * @param {Array} array The array to sort.
- * @param {Function} comparer The function to define sort order.
- * @returns {Array} Returns `array`.
- */
- function baseSortBy(array, comparer) {
- var length = array.length;
-
- array.sort(comparer);
- while (length--) {
- array[length] = array[length].value;
- }
- return array;
- }
-
- /**
- * The base implementation of `_.sortByOrder` without param guards.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
- * @param {boolean[]} orders The sort orders of `iteratees`.
- * @returns {Array} Returns the new sorted array.
- */
- function baseSortByOrder(collection, iteratees, orders) {
- var callback = getCallback(),
- index = -1;
-
- iteratees = arrayMap(iteratees, function(iteratee) { return callback(iteratee); });
-
- var result = baseMap(collection, function(value) {
- var criteria = arrayMap(iteratees, function(iteratee) { return iteratee(value); });
- return { 'criteria': criteria, 'index': ++index, 'value': value };
- });
-
- return baseSortBy(result, function(object, other) {
- return compareMultiple(object, other, orders);
- });
- }
-
- /**
- * The base implementation of `_.sum` without support for callback shorthands
- * and `this` binding.
- *
- * @private
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {number} Returns the sum.
- */
- function baseSum(collection, iteratee) {
- var result = 0;
- baseEach(collection, function(value, index, collection) {
- result += +iteratee(value, index, collection) || 0;
- });
- return result;
- }
-
- /**
- * The base implementation of `_.uniq` without support for callback shorthands
- * and `this` binding.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {Function} [iteratee] The function invoked per iteration.
- * @returns {Array} Returns the new duplicate-value-free array.
- */
- function baseUniq(array, iteratee) {
- var index = -1,
- indexOf = getIndexOf(),
- length = array.length,
- isCommon = indexOf == baseIndexOf,
- isLarge = isCommon && length >= LARGE_ARRAY_SIZE,
- seen = isLarge ? createCache() : null,
- result = [];
-
- if (seen) {
- indexOf = cacheIndexOf;
- isCommon = false;
- } else {
- isLarge = false;
- seen = iteratee ? [] : result;
- }
- outer:
- while (++index < length) {
- var value = array[index],
- computed = iteratee ? iteratee(value, index, array) : value;
-
- if (isCommon && value === value) {
- var seenIndex = seen.length;
- while (seenIndex--) {
- if (seen[seenIndex] === computed) {
- continue outer;
- }
- }
- if (iteratee) {
- seen.push(computed);
- }
- result.push(value);
- }
- else if (indexOf(seen, computed, 0) < 0) {
- if (iteratee || isLarge) {
- seen.push(computed);
- }
- result.push(value);
- }
- }
- return result;
- }
-
- /**
- * The base implementation of `_.values` and `_.valuesIn` which creates an
- * array of `object` property values corresponding to the property names
- * of `props`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Array} props The property names to get values for.
- * @returns {Object} Returns the array of property values.
- */
- function baseValues(object, props) {
- var index = -1,
- length = props.length,
- result = Array(length);
-
- while (++index < length) {
- result[index] = object[props[index]];
- }
- return result;
- }
-
- /**
- * The base implementation of `_.dropRightWhile`, `_.dropWhile`, `_.takeRightWhile`,
- * and `_.takeWhile` without support for callback shorthands and `this` binding.
- *
- * @private
- * @param {Array} array The array to query.
- * @param {Function} predicate The function invoked per iteration.
- * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Array} Returns the slice of `array`.
- */
- function baseWhile(array, predicate, isDrop, fromRight) {
- var length = array.length,
- index = fromRight ? length : -1;
-
- while ((fromRight ? index-- : ++index < length) && predicate(array[index], index, array)) {}
- return isDrop
- ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
- : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
- }
-
- /**
- * The base implementation of `wrapperValue` which returns the result of
- * performing a sequence of actions on the unwrapped `value`, where each
- * successive action is supplied the return value of the previous.
- *
- * @private
- * @param {*} value The unwrapped value.
- * @param {Array} actions Actions to peform to resolve the unwrapped value.
- * @returns {*} Returns the resolved value.
- */
- function baseWrapperValue(value, actions) {
- var result = value;
- if (result instanceof LazyWrapper) {
- result = result.value();
- }
- var index = -1,
- length = actions.length;
-
- while (++index < length) {
- var action = actions[index];
- result = action.func.apply(action.thisArg, arrayPush([result], action.args));
- }
- return result;
- }
-
- /**
- * Performs a binary search of `array` to determine the index at which `value`
- * should be inserted into `array` in order to maintain its sort order.
- *
- * @private
- * @param {Array} array The sorted array to inspect.
- * @param {*} value The value to evaluate.
- * @param {boolean} [retHighest] Specify returning the highest qualified index.
- * @returns {number} Returns the index at which `value` should be inserted
- * into `array`.
- */
- function binaryIndex(array, value, retHighest) {
- var low = 0,
- high = array ? array.length : low;
-
- if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
- while (low < high) {
- var mid = (low + high) >>> 1,
- computed = array[mid];
-
- if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
- low = mid + 1;
- } else {
- high = mid;
- }
- }
- return high;
- }
- return binaryIndexBy(array, value, identity, retHighest);
- }
-
- /**
- * This function is like `binaryIndex` except that it invokes `iteratee` for
- * `value` and each element of `array` to compute their sort ranking. The
- * iteratee is invoked with one argument; (value).
- *
- * @private
- * @param {Array} array The sorted array to inspect.
- * @param {*} value The value to evaluate.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {boolean} [retHighest] Specify returning the highest qualified index.
- * @returns {number} Returns the index at which `value` should be inserted
- * into `array`.
- */
- function binaryIndexBy(array, value, iteratee, retHighest) {
- value = iteratee(value);
-
- var low = 0,
- high = array ? array.length : 0,
- valIsNaN = value !== value,
- valIsNull = value === null,
- valIsUndef = value === undefined;
-
- while (low < high) {
- var mid = nativeFloor((low + high) / 2),
- computed = iteratee(array[mid]),
- isDef = computed !== undefined,
- isReflexive = computed === computed;
-
- if (valIsNaN) {
- var setLow = isReflexive || retHighest;
- } else if (valIsNull) {
- setLow = isReflexive && isDef && (retHighest || computed != null);
- } else if (valIsUndef) {
- setLow = isReflexive && (retHighest || isDef);
- } else if (computed == null) {
- setLow = false;
- } else {
- setLow = retHighest ? (computed <= value) : (computed < value);
- }
- if (setLow) {
- low = mid + 1;
- } else {
- high = mid;
- }
- }
- return nativeMin(high, MAX_ARRAY_INDEX);
- }
-
- /**
- * A specialized version of `baseCallback` which only supports `this` binding
- * and specifying the number of arguments to provide to `func`.
- *
- * @private
- * @param {Function} func The function to bind.
- * @param {*} thisArg The `this` binding of `func`.
- * @param {number} [argCount] The number of arguments to provide to `func`.
- * @returns {Function} Returns the callback.
- */
- function bindCallback(func, thisArg, argCount) {
- if (typeof func != 'function') {
- return identity;
- }
- if (thisArg === undefined) {
- return func;
- }
- switch (argCount) {
- case 1: return function(value) {
- return func.call(thisArg, value);
- };
- case 3: return function(value, index, collection) {
- return func.call(thisArg, value, index, collection);
- };
- case 4: return function(accumulator, value, index, collection) {
- return func.call(thisArg, accumulator, value, index, collection);
- };
- case 5: return function(value, other, key, object, source) {
- return func.call(thisArg, value, other, key, object, source);
- };
- }
- return function() {
- return func.apply(thisArg, arguments);
- };
- }
-
- /**
- * Creates a clone of the given array buffer.
- *
- * @private
- * @param {ArrayBuffer} buffer The array buffer to clone.
- * @returns {ArrayBuffer} Returns the cloned array buffer.
- */
- function bufferClone(buffer) {
- var result = new ArrayBuffer(buffer.byteLength),
- view = new Uint8Array(result);
-
- view.set(new Uint8Array(buffer));
- return result;
- }
-
- /**
- * Creates an array that is the composition of partially applied arguments,
- * placeholders, and provided arguments into a single array of arguments.
- *
- * @private
- * @param {Array|Object} args The provided arguments.
- * @param {Array} partials The arguments to prepend to those provided.
- * @param {Array} holders The `partials` placeholder indexes.
- * @returns {Array} Returns the new array of composed arguments.
- */
- function composeArgs(args, partials, holders) {
- var holdersLength = holders.length,
- argsIndex = -1,
- argsLength = nativeMax(args.length - holdersLength, 0),
- leftIndex = -1,
- leftLength = partials.length,
- result = Array(leftLength + argsLength);
-
- while (++leftIndex < leftLength) {
- result[leftIndex] = partials[leftIndex];
- }
- while (++argsIndex < holdersLength) {
- result[holders[argsIndex]] = args[argsIndex];
- }
- while (argsLength--) {
- result[leftIndex++] = args[argsIndex++];
- }
- return result;
- }
-
- /**
- * This function is like `composeArgs` except that the arguments composition
- * is tailored for `_.partialRight`.
- *
- * @private
- * @param {Array|Object} args The provided arguments.
- * @param {Array} partials The arguments to append to those provided.
- * @param {Array} holders The `partials` placeholder indexes.
- * @returns {Array} Returns the new array of composed arguments.
- */
- function composeArgsRight(args, partials, holders) {
- var holdersIndex = -1,
- holdersLength = holders.length,
- argsIndex = -1,
- argsLength = nativeMax(args.length - holdersLength, 0),
- rightIndex = -1,
- rightLength = partials.length,
- result = Array(argsLength + rightLength);
-
- while (++argsIndex < argsLength) {
- result[argsIndex] = args[argsIndex];
- }
- var offset = argsIndex;
- while (++rightIndex < rightLength) {
- result[offset + rightIndex] = partials[rightIndex];
- }
- while (++holdersIndex < holdersLength) {
- result[offset + holders[holdersIndex]] = args[argsIndex++];
- }
- return result;
- }
-
- /**
- * Creates a `_.countBy`, `_.groupBy`, `_.indexBy`, or `_.partition` function.
- *
- * @private
- * @param {Function} setter The function to set keys and values of the accumulator object.
- * @param {Function} [initializer] The function to initialize the accumulator object.
- * @returns {Function} Returns the new aggregator function.
- */
- function createAggregator(setter, initializer) {
- return function(collection, iteratee, thisArg) {
- var result = initializer ? initializer() : {};
- iteratee = getCallback(iteratee, thisArg, 3);
-
- if (isArray(collection)) {
- var index = -1,
- length = collection.length;
-
- while (++index < length) {
- var value = collection[index];
- setter(result, value, iteratee(value, index, collection), collection);
- }
- } else {
- baseEach(collection, function(value, key, collection) {
- setter(result, value, iteratee(value, key, collection), collection);
- });
- }
- return result;
- };
- }
-
- /**
- * Creates a `_.assign`, `_.defaults`, or `_.merge` function.
- *
- * @private
- * @param {Function} assigner The function to assign values.
- * @returns {Function} Returns the new assigner function.
- */
- function createAssigner(assigner) {
- return restParam(function(object, sources) {
- var index = -1,
- length = object == null ? 0 : sources.length,
- customizer = length > 2 ? sources[length - 2] : undefined,
- guard = length > 2 ? sources[2] : undefined,
- thisArg = length > 1 ? sources[length - 1] : undefined;
-
- if (typeof customizer == 'function') {
- customizer = bindCallback(customizer, thisArg, 5);
- length -= 2;
- } else {
- customizer = typeof thisArg == 'function' ? thisArg : undefined;
- length -= (customizer ? 1 : 0);
- }
- if (guard && isIterateeCall(sources[0], sources[1], guard)) {
- customizer = length < 3 ? undefined : customizer;
- length = 1;
- }
- while (++index < length) {
- var source = sources[index];
- if (source) {
- assigner(object, source, customizer);
- }
- }
- return object;
- });
- }
-
- /**
- * Creates a `baseEach` or `baseEachRight` function.
- *
- * @private
- * @param {Function} eachFunc The function to iterate over a collection.
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new base function.
- */
- function createBaseEach(eachFunc, fromRight) {
- return function(collection, iteratee) {
- var length = collection ? getLength(collection) : 0;
- if (!isLength(length)) {
- return eachFunc(collection, iteratee);
- }
- var index = fromRight ? length : -1,
- iterable = toObject(collection);
-
- while ((fromRight ? index-- : ++index < length)) {
- if (iteratee(iterable[index], index, iterable) === false) {
- break;
- }
- }
- return collection;
- };
- }
-
- /**
- * Creates a base function for `_.forIn` or `_.forInRight`.
- *
- * @private
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new base function.
- */
- function createBaseFor(fromRight) {
- return function(object, iteratee, keysFunc) {
- var iterable = toObject(object),
- props = keysFunc(object),
- length = props.length,
- index = fromRight ? length : -1;
-
- while ((fromRight ? index-- : ++index < length)) {
- var key = props[index];
- if (iteratee(iterable[key], key, iterable) === false) {
- break;
- }
- }
- return object;
- };
- }
-
- /**
- * Creates a function that wraps `func` and invokes it with the `this`
- * binding of `thisArg`.
- *
- * @private
- * @param {Function} func The function to bind.
- * @param {*} [thisArg] The `this` binding of `func`.
- * @returns {Function} Returns the new bound function.
- */
- function createBindWrapper(func, thisArg) {
- var Ctor = createCtorWrapper(func);
-
- function wrapper() {
- var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
- return fn.apply(thisArg, arguments);
- }
- return wrapper;
- }
-
- /**
- * Creates a `Set` cache object to optimize linear searches of large arrays.
- *
- * @private
- * @param {Array} [values] The values to cache.
- * @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
- */
- function createCache(values) {
- return (nativeCreate && Set) ? new SetCache(values) : null;
- }
-
- /**
- * Creates a function that produces compound words out of the words in a
- * given string.
- *
- * @private
- * @param {Function} callback The function to combine each word.
- * @returns {Function} Returns the new compounder function.
- */
- function createCompounder(callback) {
- return function(string) {
- var index = -1,
- array = words(deburr(string)),
- length = array.length,
- result = '';
-
- while (++index < length) {
- result = callback(result, array[index], index);
- }
- return result;
- };
- }
-
- /**
- * Creates a function that produces an instance of `Ctor` regardless of
- * whether it was invoked as part of a `new` expression or by `call` or `apply`.
- *
- * @private
- * @param {Function} Ctor The constructor to wrap.
- * @returns {Function} Returns the new wrapped function.
- */
- function createCtorWrapper(Ctor) {
- return function() {
- // Use a `switch` statement to work with class constructors.
- // See http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
- // for more details.
- var args = arguments;
- switch (args.length) {
- case 0: return new Ctor;
- case 1: return new Ctor(args[0]);
- case 2: return new Ctor(args[0], args[1]);
- case 3: return new Ctor(args[0], args[1], args[2]);
- case 4: return new Ctor(args[0], args[1], args[2], args[3]);
- case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
- case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
- case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
- }
- var thisBinding = baseCreate(Ctor.prototype),
- result = Ctor.apply(thisBinding, args);
-
- // Mimic the constructor's `return` behavior.
- // See https://es5.github.io/#x13.2.2 for more details.
- return isObject(result) ? result : thisBinding;
- };
- }
-
- /**
- * Creates a `_.curry` or `_.curryRight` function.
- *
- * @private
- * @param {boolean} flag The curry bit flag.
- * @returns {Function} Returns the new curry function.
- */
- function createCurry(flag) {
- function curryFunc(func, arity, guard) {
- if (guard && isIterateeCall(func, arity, guard)) {
- arity = undefined;
- }
- var result = createWrapper(func, flag, undefined, undefined, undefined, undefined, undefined, arity);
- result.placeholder = curryFunc.placeholder;
- return result;
- }
- return curryFunc;
- }
-
- /**
- * Creates a `_.defaults` or `_.defaultsDeep` function.
- *
- * @private
- * @param {Function} assigner The function to assign values.
- * @param {Function} customizer The function to customize assigned values.
- * @returns {Function} Returns the new defaults function.
- */
- function createDefaults(assigner, customizer) {
- return restParam(function(args) {
- var object = args[0];
- if (object == null) {
- return object;
- }
- args.push(customizer);
- return assigner.apply(undefined, args);
- });
- }
-
- /**
- * Creates a `_.max` or `_.min` function.
- *
- * @private
- * @param {Function} comparator The function used to compare values.
- * @param {*} exValue The initial extremum value.
- * @returns {Function} Returns the new extremum function.
- */
- function createExtremum(comparator, exValue) {
- return function(collection, iteratee, thisArg) {
- if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
- iteratee = undefined;
- }
- iteratee = getCallback(iteratee, thisArg, 3);
- if (iteratee.length == 1) {
- collection = isArray(collection) ? collection : toIterable(collection);
- var result = arrayExtremum(collection, iteratee, comparator, exValue);
- if (!(collection.length && result === exValue)) {
- return result;
- }
- }
- return baseExtremum(collection, iteratee, comparator, exValue);
- };
- }
-
- /**
- * Creates a `_.find` or `_.findLast` function.
- *
- * @private
- * @param {Function} eachFunc The function to iterate over a collection.
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new find function.
- */
- function createFind(eachFunc, fromRight) {
- return function(collection, predicate, thisArg) {
- predicate = getCallback(predicate, thisArg, 3);
- if (isArray(collection)) {
- var index = baseFindIndex(collection, predicate, fromRight);
- return index > -1 ? collection[index] : undefined;
- }
- return baseFind(collection, predicate, eachFunc);
- };
- }
-
- /**
- * Creates a `_.findIndex` or `_.findLastIndex` function.
- *
- * @private
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new find function.
- */
- function createFindIndex(fromRight) {
- return function(array, predicate, thisArg) {
- if (!(array && array.length)) {
- return -1;
- }
- predicate = getCallback(predicate, thisArg, 3);
- return baseFindIndex(array, predicate, fromRight);
- };
- }
-
- /**
- * Creates a `_.findKey` or `_.findLastKey` function.
- *
- * @private
- * @param {Function} objectFunc The function to iterate over an object.
- * @returns {Function} Returns the new find function.
- */
- function createFindKey(objectFunc) {
- return function(object, predicate, thisArg) {
- predicate = getCallback(predicate, thisArg, 3);
- return baseFind(object, predicate, objectFunc, true);
- };
- }
-
- /**
- * Creates a `_.flow` or `_.flowRight` function.
- *
- * @private
- * @param {boolean} [fromRight] Specify iterating from right to left.
- * @returns {Function} Returns the new flow function.
- */
- function createFlow(fromRight) {
- return function() {
- var wrapper,
- length = arguments.length,
- index = fromRight ? length : -1,
- leftIndex = 0,
- funcs = Array(length);
-
- while ((fromRight ? index-- : ++index < length)) {
- var func = funcs[leftIndex++] = arguments[index];
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- if (!wrapper && LodashWrapper.prototype.thru && getFuncName(func) == 'wrapper') {
- wrapper = new LodashWrapper([], true);
- }
- }
- index = wrapper ? -1 : length;
- while (++index < length) {
- func = funcs[index];
-
- var funcName = getFuncName(func),
- data = funcName == 'wrapper' ? getData(func) : undefined;
-
- if (data && isLaziable(data[0]) && data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) && !data[4].length && data[9] == 1) {
- wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
- } else {
- wrapper = (func.length == 1 && isLaziable(func)) ? wrapper[funcName]() : wrapper.thru(func);
- }
- }
- return function() {
- var args = arguments,
- value = args[0];
-
- if (wrapper && args.length == 1 && isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
- return wrapper.plant(value).value();
- }
- var index = 0,
- result = length ? funcs[index].apply(this, args) : value;
-
- while (++index < length) {
- result = funcs[index].call(this, result);
- }
- return result;
- };
- };
- }
-
- /**
- * Creates a function for `_.forEach` or `_.forEachRight`.
- *
- * @private
- * @param {Function} arrayFunc The function to iterate over an array.
- * @param {Function} eachFunc The function to iterate over a collection.
- * @returns {Function} Returns the new each function.
- */
- function createForEach(arrayFunc, eachFunc) {
- return function(collection, iteratee, thisArg) {
- return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
- ? arrayFunc(collection, iteratee)
- : eachFunc(collection, bindCallback(iteratee, thisArg, 3));
- };
- }
-
- /**
- * Creates a function for `_.forIn` or `_.forInRight`.
- *
- * @private
- * @param {Function} objectFunc The function to iterate over an object.
- * @returns {Function} Returns the new each function.
- */
- function createForIn(objectFunc) {
- return function(object, iteratee, thisArg) {
- if (typeof iteratee != 'function' || thisArg !== undefined) {
- iteratee = bindCallback(iteratee, thisArg, 3);
- }
- return objectFunc(object, iteratee, keysIn);
- };
- }
-
- /**
- * Creates a function for `_.forOwn` or `_.forOwnRight`.
- *
- * @private
- * @param {Function} objectFunc The function to iterate over an object.
- * @returns {Function} Returns the new each function.
- */
- function createForOwn(objectFunc) {
- return function(object, iteratee, thisArg) {
- if (typeof iteratee != 'function' || thisArg !== undefined) {
- iteratee = bindCallback(iteratee, thisArg, 3);
- }
- return objectFunc(object, iteratee);
- };
- }
-
- /**
- * Creates a function for `_.mapKeys` or `_.mapValues`.
- *
- * @private
- * @param {boolean} [isMapKeys] Specify mapping keys instead of values.
- * @returns {Function} Returns the new map function.
- */
- function createObjectMapper(isMapKeys) {
- return function(object, iteratee, thisArg) {
- var result = {};
- iteratee = getCallback(iteratee, thisArg, 3);
-
- baseForOwn(object, function(value, key, object) {
- var mapped = iteratee(value, key, object);
- key = isMapKeys ? mapped : key;
- value = isMapKeys ? value : mapped;
- result[key] = value;
- });
- return result;
- };
- }
-
- /**
- * Creates a function for `_.padLeft` or `_.padRight`.
- *
- * @private
- * @param {boolean} [fromRight] Specify padding from the right.
- * @returns {Function} Returns the new pad function.
- */
- function createPadDir(fromRight) {
- return function(string, length, chars) {
- string = baseToString(string);
- return (fromRight ? string : '') + createPadding(string, length, chars) + (fromRight ? '' : string);
- };
- }
-
- /**
- * Creates a `_.partial` or `_.partialRight` function.
- *
- * @private
- * @param {boolean} flag The partial bit flag.
- * @returns {Function} Returns the new partial function.
- */
- function createPartial(flag) {
- var partialFunc = restParam(function(func, partials) {
- var holders = replaceHolders(partials, partialFunc.placeholder);
- return createWrapper(func, flag, undefined, partials, holders);
- });
- return partialFunc;
- }
-
- /**
- * Creates a function for `_.reduce` or `_.reduceRight`.
- *
- * @private
- * @param {Function} arrayFunc The function to iterate over an array.
- * @param {Function} eachFunc The function to iterate over a collection.
- * @returns {Function} Returns the new each function.
- */
- function createReduce(arrayFunc, eachFunc) {
- return function(collection, iteratee, accumulator, thisArg) {
- var initFromArray = arguments.length < 3;
- return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
- ? arrayFunc(collection, iteratee, accumulator, initFromArray)
- : baseReduce(collection, getCallback(iteratee, thisArg, 4), accumulator, initFromArray, eachFunc);
- };
- }
-
- /**
- * Creates a function that wraps `func` and invokes it with optional `this`
- * binding of, partial application, and currying.
- *
- * @private
- * @param {Function|string} func The function or method name to reference.
- * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
- * @param {*} [thisArg] The `this` binding of `func`.
- * @param {Array} [partials] The arguments to prepend to those provided to the new function.
- * @param {Array} [holders] The `partials` placeholder indexes.
- * @param {Array} [partialsRight] The arguments to append to those provided to the new function.
- * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
- * @param {Array} [argPos] The argument positions of the new function.
- * @param {number} [ary] The arity cap of `func`.
- * @param {number} [arity] The arity of `func`.
- * @returns {Function} Returns the new wrapped function.
- */
- function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
- var isAry = bitmask & ARY_FLAG,
- isBind = bitmask & BIND_FLAG,
- isBindKey = bitmask & BIND_KEY_FLAG,
- isCurry = bitmask & CURRY_FLAG,
- isCurryBound = bitmask & CURRY_BOUND_FLAG,
- isCurryRight = bitmask & CURRY_RIGHT_FLAG,
- Ctor = isBindKey ? undefined : createCtorWrapper(func);
-
- function wrapper() {
- // Avoid `arguments` object use disqualifying optimizations by
- // converting it to an array before providing it to other functions.
- var length = arguments.length,
- index = length,
- args = Array(length);
-
- while (index--) {
- args[index] = arguments[index];
- }
- if (partials) {
- args = composeArgs(args, partials, holders);
- }
- if (partialsRight) {
- args = composeArgsRight(args, partialsRight, holdersRight);
- }
- if (isCurry || isCurryRight) {
- var placeholder = wrapper.placeholder,
- argsHolders = replaceHolders(args, placeholder);
-
- length -= argsHolders.length;
- if (length < arity) {
- var newArgPos = argPos ? arrayCopy(argPos) : undefined,
- newArity = nativeMax(arity - length, 0),
- newsHolders = isCurry ? argsHolders : undefined,
- newHoldersRight = isCurry ? undefined : argsHolders,
- newPartials = isCurry ? args : undefined,
- newPartialsRight = isCurry ? undefined : args;
-
- bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
- bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
-
- if (!isCurryBound) {
- bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
- }
- var newData = [func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity],
- result = createHybridWrapper.apply(undefined, newData);
-
- if (isLaziable(func)) {
- setData(result, newData);
- }
- result.placeholder = placeholder;
- return result;
- }
- }
- var thisBinding = isBind ? thisArg : this,
- fn = isBindKey ? thisBinding[func] : func;
-
- if (argPos) {
- args = reorder(args, argPos);
- }
- if (isAry && ary < args.length) {
- args.length = ary;
- }
- if (this && this !== root && this instanceof wrapper) {
- fn = Ctor || createCtorWrapper(func);
- }
- return fn.apply(thisBinding, args);
- }
- return wrapper;
- }
-
- /**
- * Creates the padding required for `string` based on the given `length`.
- * The `chars` string is truncated if the number of characters exceeds `length`.
- *
- * @private
- * @param {string} string The string to create padding for.
- * @param {number} [length=0] The padding length.
- * @param {string} [chars=' '] The string used as padding.
- * @returns {string} Returns the pad for `string`.
- */
- function createPadding(string, length, chars) {
- var strLength = string.length;
- length = +length;
-
- if (strLength >= length || !nativeIsFinite(length)) {
- return '';
- }
- var padLength = length - strLength;
- chars = chars == null ? ' ' : (chars + '');
- return repeat(chars, nativeCeil(padLength / chars.length)).slice(0, padLength);
- }
-
- /**
- * Creates a function that wraps `func` and invokes it with the optional `this`
- * binding of `thisArg` and the `partials` prepended to those provided to
- * the wrapper.
- *
- * @private
- * @param {Function} func The function to partially apply arguments to.
- * @param {number} bitmask The bitmask of flags. See `createWrapper` for more details.
- * @param {*} thisArg The `this` binding of `func`.
- * @param {Array} partials The arguments to prepend to those provided to the new function.
- * @returns {Function} Returns the new bound function.
- */
- function createPartialWrapper(func, bitmask, thisArg, partials) {
- var isBind = bitmask & BIND_FLAG,
- Ctor = createCtorWrapper(func);
-
- function wrapper() {
- // Avoid `arguments` object use disqualifying optimizations by
- // converting it to an array before providing it `func`.
- var argsIndex = -1,
- argsLength = arguments.length,
- leftIndex = -1,
- leftLength = partials.length,
- args = Array(leftLength + argsLength);
-
- while (++leftIndex < leftLength) {
- args[leftIndex] = partials[leftIndex];
- }
- while (argsLength--) {
- args[leftIndex++] = arguments[++argsIndex];
- }
- var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
- return fn.apply(isBind ? thisArg : this, args);
- }
- return wrapper;
- }
-
- /**
- * Creates a `_.ceil`, `_.floor`, or `_.round` function.
- *
- * @private
- * @param {string} methodName The name of the `Math` method to use when rounding.
- * @returns {Function} Returns the new round function.
- */
- function createRound(methodName) {
- var func = Math[methodName];
- return function(number, precision) {
- precision = precision === undefined ? 0 : (+precision || 0);
- if (precision) {
- precision = pow(10, precision);
- return func(number * precision) / precision;
- }
- return func(number);
- };
- }
-
- /**
- * Creates a `_.sortedIndex` or `_.sortedLastIndex` function.
- *
- * @private
- * @param {boolean} [retHighest] Specify returning the highest qualified index.
- * @returns {Function} Returns the new index function.
- */
- function createSortedIndex(retHighest) {
- return function(array, value, iteratee, thisArg) {
- var callback = getCallback(iteratee);
- return (iteratee == null && callback === baseCallback)
- ? binaryIndex(array, value, retHighest)
- : binaryIndexBy(array, value, callback(iteratee, thisArg, 1), retHighest);
- };
- }
-
- /**
- * Creates a function that either curries or invokes `func` with optional
- * `this` binding and partially applied arguments.
- *
- * @private
- * @param {Function|string} func The function or method name to reference.
- * @param {number} bitmask The bitmask of flags.
- * The bitmask may be composed of the following flags:
- * 1 - `_.bind`
- * 2 - `_.bindKey`
- * 4 - `_.curry` or `_.curryRight` of a bound function
- * 8 - `_.curry`
- * 16 - `_.curryRight`
- * 32 - `_.partial`
- * 64 - `_.partialRight`
- * 128 - `_.rearg`
- * 256 - `_.ary`
- * @param {*} [thisArg] The `this` binding of `func`.
- * @param {Array} [partials] The arguments to be partially applied.
- * @param {Array} [holders] The `partials` placeholder indexes.
- * @param {Array} [argPos] The argument positions of the new function.
- * @param {number} [ary] The arity cap of `func`.
- * @param {number} [arity] The arity of `func`.
- * @returns {Function} Returns the new wrapped function.
- */
- function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
- var isBindKey = bitmask & BIND_KEY_FLAG;
- if (!isBindKey && typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- var length = partials ? partials.length : 0;
- if (!length) {
- bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
- partials = holders = undefined;
- }
- length -= (holders ? holders.length : 0);
- if (bitmask & PARTIAL_RIGHT_FLAG) {
- var partialsRight = partials,
- holdersRight = holders;
-
- partials = holders = undefined;
- }
- var data = isBindKey ? undefined : getData(func),
- newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];
-
- if (data) {
- mergeData(newData, data);
- bitmask = newData[1];
- arity = newData[9];
- }
- newData[9] = arity == null
- ? (isBindKey ? 0 : func.length)
- : (nativeMax(arity - length, 0) || 0);
-
- if (bitmask == BIND_FLAG) {
- var result = createBindWrapper(newData[0], newData[2]);
- } else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
- result = createPartialWrapper.apply(undefined, newData);
- } else {
- result = createHybridWrapper.apply(undefined, newData);
- }
- var setter = data ? baseSetData : setData;
- return setter(result, newData);
- }
-
- /**
- * A specialized version of `baseIsEqualDeep` for arrays with support for
- * partial deep comparisons.
- *
- * @private
- * @param {Array} array The array to compare.
- * @param {Array} other The other array to compare.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Function} [customizer] The function to customize comparing arrays.
- * @param {boolean} [isLoose] Specify performing partial comparisons.
- * @param {Array} [stackA] Tracks traversed `value` objects.
- * @param {Array} [stackB] Tracks traversed `other` objects.
- * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
- */
- function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
- var index = -1,
- arrLength = array.length,
- othLength = other.length;
-
- if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
- return false;
- }
- // Ignore non-index properties.
- while (++index < arrLength) {
- var arrValue = array[index],
- othValue = other[index],
- result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;
-
- if (result !== undefined) {
- if (result) {
- continue;
- }
- return false;
- }
- // Recursively compare arrays (susceptible to call stack limits).
- if (isLoose) {
- if (!arraySome(other, function(othValue) {
- return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
- })) {
- return false;
- }
- } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * A specialized version of `baseIsEqualDeep` for comparing objects of
- * the same `toStringTag`.
- *
- * **Note:** This function only supports comparing values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {string} tag The `toStringTag` of the objects to compare.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
- function equalByTag(object, other, tag) {
- switch (tag) {
- case boolTag:
- case dateTag:
- // Coerce dates and booleans to numbers, dates to milliseconds and booleans
- // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
- return +object == +other;
-
- case errorTag:
- return object.name == other.name && object.message == other.message;
-
- case numberTag:
- // Treat `NaN` vs. `NaN` as equal.
- return (object != +object)
- ? other != +other
- : object == +other;
-
- case regexpTag:
- case stringTag:
- // Coerce regexes to strings and treat strings primitives and string
- // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
- return object == (other + '');
- }
- return false;
- }
-
- /**
- * A specialized version of `baseIsEqualDeep` for objects with support for
- * partial deep comparisons.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Function} [customizer] The function to customize comparing values.
- * @param {boolean} [isLoose] Specify performing partial comparisons.
- * @param {Array} [stackA] Tracks traversed `value` objects.
- * @param {Array} [stackB] Tracks traversed `other` objects.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
- function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
- var objProps = keys(object),
- objLength = objProps.length,
- othProps = keys(other),
- othLength = othProps.length;
-
- if (objLength != othLength && !isLoose) {
- return false;
- }
- var index = objLength;
- while (index--) {
- var key = objProps[index];
- if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
- return false;
- }
- }
- var skipCtor = isLoose;
- while (++index < objLength) {
- key = objProps[index];
- var objValue = object[key],
- othValue = other[key],
- result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;
-
- // Recursively compare objects (susceptible to call stack limits).
- if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
- return false;
- }
- skipCtor || (skipCtor = key == 'constructor');
- }
- if (!skipCtor) {
- var objCtor = object.constructor,
- othCtor = other.constructor;
-
- // Non `Object` object instances with different constructors are not equal.
- if (objCtor != othCtor &&
- ('constructor' in object && 'constructor' in other) &&
- !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
- typeof othCtor == 'function' && othCtor instanceof othCtor)) {
- return false;
- }
- }
- return true;
- }
-
- /**
- * Gets the appropriate "callback" function. If the `_.callback` method is
- * customized this function returns the custom method, otherwise it returns
- * the `baseCallback` function. If arguments are provided the chosen function
- * is invoked with them and its result is returned.
- *
- * @private
- * @returns {Function} Returns the chosen function or its result.
- */
- function getCallback(func, thisArg, argCount) {
- var result = lodash.callback || callback;
- result = result === callback ? baseCallback : result;
- return argCount ? result(func, thisArg, argCount) : result;
- }
-
- /**
- * Gets metadata for `func`.
- *
- * @private
- * @param {Function} func The function to query.
- * @returns {*} Returns the metadata for `func`.
- */
- var getData = !metaMap ? noop : function(func) {
- return metaMap.get(func);
- };
-
- /**
- * Gets the name of `func`.
- *
- * @private
- * @param {Function} func The function to query.
- * @returns {string} Returns the function name.
- */
- function getFuncName(func) {
- var result = func.name,
- array = realNames[result],
- length = array ? array.length : 0;
-
- while (length--) {
- var data = array[length],
- otherFunc = data.func;
- if (otherFunc == null || otherFunc == func) {
- return data.name;
- }
- }
- return result;
- }
-
- /**
- * Gets the appropriate "indexOf" function. If the `_.indexOf` method is
- * customized this function returns the custom method, otherwise it returns
- * the `baseIndexOf` function. If arguments are provided the chosen function
- * is invoked with them and its result is returned.
- *
- * @private
- * @returns {Function|number} Returns the chosen function or its result.
- */
- function getIndexOf(collection, target, fromIndex) {
- var result = lodash.indexOf || indexOf;
- result = result === indexOf ? baseIndexOf : result;
- return collection ? result(collection, target, fromIndex) : result;
- }
-
- /**
- * Gets the "length" property value of `object`.
- *
- * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
- * that affects Safari on at least iOS 8.1-8.3 ARM64.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {*} Returns the "length" value.
- */
- var getLength = baseProperty('length');
-
- /**
- * Gets the propery names, values, and compare flags of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the match data of `object`.
- */
- function getMatchData(object) {
- var result = pairs(object),
- length = result.length;
-
- while (length--) {
- result[length][2] = isStrictComparable(result[length][1]);
- }
- return result;
- }
-
- /**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
- function getNative(object, key) {
- var value = object == null ? undefined : object[key];
- return isNative(value) ? value : undefined;
- }
-
- /**
- * Gets the view, applying any `transforms` to the `start` and `end` positions.
- *
- * @private
- * @param {number} start The start of the view.
- * @param {number} end The end of the view.
- * @param {Array} transforms The transformations to apply to the view.
- * @returns {Object} Returns an object containing the `start` and `end`
- * positions of the view.
- */
- function getView(start, end, transforms) {
- var index = -1,
- length = transforms.length;
-
- while (++index < length) {
- var data = transforms[index],
- size = data.size;
-
- switch (data.type) {
- case 'drop': start += size; break;
- case 'dropRight': end -= size; break;
- case 'take': end = nativeMin(end, start + size); break;
- case 'takeRight': start = nativeMax(start, end - size); break;
- }
- }
- return { 'start': start, 'end': end };
- }
-
- /**
- * Initializes an array clone.
- *
- * @private
- * @param {Array} array The array to clone.
- * @returns {Array} Returns the initialized clone.
- */
- function initCloneArray(array) {
- var length = array.length,
- result = new array.constructor(length);
-
- // Add array properties assigned by `RegExp#exec`.
- if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
- result.index = array.index;
- result.input = array.input;
- }
- return result;
- }
-
- /**
- * Initializes an object clone.
- *
- * @private
- * @param {Object} object The object to clone.
- * @returns {Object} Returns the initialized clone.
- */
- function initCloneObject(object) {
- var Ctor = object.constructor;
- if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
- Ctor = Object;
- }
- return new Ctor;
- }
-
- /**
- * Initializes an object clone based on its `toStringTag`.
- *
- * **Note:** This function only supports cloning values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to clone.
- * @param {string} tag The `toStringTag` of the object to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the initialized clone.
- */
- function initCloneByTag(object, tag, isDeep) {
- var Ctor = object.constructor;
- switch (tag) {
- case arrayBufferTag:
- return bufferClone(object);
-
- case boolTag:
- case dateTag:
- return new Ctor(+object);
-
- case float32Tag: case float64Tag:
- case int8Tag: case int16Tag: case int32Tag:
- case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
- var buffer = object.buffer;
- return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);
-
- case numberTag:
- case stringTag:
- return new Ctor(object);
-
- case regexpTag:
- var result = new Ctor(object.source, reFlags.exec(object));
- result.lastIndex = object.lastIndex;
- }
- return result;
- }
-
- /**
- * Invokes the method at `path` on `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Array|string} path The path of the method to invoke.
- * @param {Array} args The arguments to invoke the method with.
- * @returns {*} Returns the result of the invoked method.
- */
- function invokePath(object, path, args) {
- if (object != null && !isKey(path, object)) {
- path = toPath(path);
- object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
- path = last(path);
- }
- var func = object == null ? object : object[path];
- return func == null ? undefined : func.apply(object, args);
- }
-
- /**
- * Checks if `value` is array-like.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- */
- function isArrayLike(value) {
- return value != null && isLength(getLength(value));
- }
-
- /**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
- function isIndex(value, length) {
- value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
- length = length == null ? MAX_SAFE_INTEGER : length;
- return value > -1 && value % 1 == 0 && value < length;
- }
-
- /**
- * Checks if the provided arguments are from an iteratee call.
- *
- * @private
- * @param {*} value The potential iteratee value argument.
- * @param {*} index The potential iteratee index or key argument.
- * @param {*} object The potential iteratee object argument.
- * @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
- */
- function isIterateeCall(value, index, object) {
- if (!isObject(object)) {
- return false;
- }
- var type = typeof index;
- if (type == 'number'
- ? (isArrayLike(object) && isIndex(index, object.length))
- : (type == 'string' && index in object)) {
- var other = object[index];
- return value === value ? (value === other) : (other !== other);
- }
- return false;
- }
-
- /**
- * Checks if `value` is a property name and not a property path.
- *
- * @private
- * @param {*} value The value to check.
- * @param {Object} [object] The object to query keys on.
- * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
- */
- function isKey(value, object) {
- var type = typeof value;
- if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
- return true;
- }
- if (isArray(value)) {
- return false;
- }
- var result = !reIsDeepProp.test(value);
- return result || (object != null && value in toObject(object));
- }
-
- /**
- * Checks if `func` has a lazy counterpart.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` has a lazy counterpart, else `false`.
- */
- function isLaziable(func) {
- var funcName = getFuncName(func);
- if (!(funcName in LazyWrapper.prototype)) {
- return false;
- }
- var other = lodash[funcName];
- if (func === other) {
- return true;
- }
- var data = getData(other);
- return !!data && func === data[0];
- }
-
- /**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- */
- function isLength(value) {
- return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
- }
-
- /**
- * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` if suitable for strict
- * equality comparisons, else `false`.
- */
- function isStrictComparable(value) {
- return value === value && !isObject(value);
- }
-
- /**
- * Merges the function metadata of `source` into `data`.
- *
- * Merging metadata reduces the number of wrappers required to invoke a function.
- * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
- * may be applied regardless of execution order. Methods like `_.ary` and `_.rearg`
- * augment function arguments, making the order in which they are executed important,
- * preventing the merging of metadata. However, we make an exception for a safe
- * common case where curried functions have `_.ary` and or `_.rearg` applied.
- *
- * @private
- * @param {Array} data The destination metadata.
- * @param {Array} source The source metadata.
- * @returns {Array} Returns `data`.
- */
- function mergeData(data, source) {
- var bitmask = data[1],
- srcBitmask = source[1],
- newBitmask = bitmask | srcBitmask,
- isCommon = newBitmask < ARY_FLAG;
-
- var isCombo =
- (srcBitmask == ARY_FLAG && bitmask == CURRY_FLAG) ||
- (srcBitmask == ARY_FLAG && bitmask == REARG_FLAG && data[7].length <= source[8]) ||
- (srcBitmask == (ARY_FLAG | REARG_FLAG) && bitmask == CURRY_FLAG);
-
- // Exit early if metadata can't be merged.
- if (!(isCommon || isCombo)) {
- return data;
- }
- // Use source `thisArg` if available.
- if (srcBitmask & BIND_FLAG) {
- data[2] = source[2];
- // Set when currying a bound function.
- newBitmask |= (bitmask & BIND_FLAG) ? 0 : CURRY_BOUND_FLAG;
- }
- // Compose partial arguments.
- var value = source[3];
- if (value) {
- var partials = data[3];
- data[3] = partials ? composeArgs(partials, value, source[4]) : arrayCopy(value);
- data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
- }
- // Compose partial right arguments.
- value = source[5];
- if (value) {
- partials = data[5];
- data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
- data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
- }
- // Use source `argPos` if available.
- value = source[7];
- if (value) {
- data[7] = arrayCopy(value);
- }
- // Use source `ary` if it's smaller.
- if (srcBitmask & ARY_FLAG) {
- data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
- }
- // Use source `arity` if one is not provided.
- if (data[9] == null) {
- data[9] = source[9];
- }
- // Use source `func` and merge bitmasks.
- data[0] = source[0];
- data[1] = newBitmask;
-
- return data;
- }
-
- /**
- * Used by `_.defaultsDeep` to customize its `_.merge` use.
- *
- * @private
- * @param {*} objectValue The destination object property value.
- * @param {*} sourceValue The source object property value.
- * @returns {*} Returns the value to assign to the destination object.
- */
- function mergeDefaults(objectValue, sourceValue) {
- return objectValue === undefined ? sourceValue : merge(objectValue, sourceValue, mergeDefaults);
- }
-
- /**
- * A specialized version of `_.pick` which picks `object` properties specified
- * by `props`.
- *
- * @private
- * @param {Object} object The source object.
- * @param {string[]} props The property names to pick.
- * @returns {Object} Returns the new object.
- */
- function pickByArray(object, props) {
- object = toObject(object);
-
- var index = -1,
- length = props.length,
- result = {};
-
- while (++index < length) {
- var key = props[index];
- if (key in object) {
- result[key] = object[key];
- }
- }
- return result;
- }
-
- /**
- * A specialized version of `_.pick` which picks `object` properties `predicate`
- * returns truthy for.
- *
- * @private
- * @param {Object} object The source object.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {Object} Returns the new object.
- */
- function pickByCallback(object, predicate) {
- var result = {};
- baseForIn(object, function(value, key, object) {
- if (predicate(value, key, object)) {
- result[key] = value;
- }
- });
- return result;
- }
-
- /**
- * Reorder `array` according to the specified indexes where the element at
- * the first index is assigned as the first element, the element at
- * the second index is assigned as the second element, and so on.
- *
- * @private
- * @param {Array} array The array to reorder.
- * @param {Array} indexes The arranged array indexes.
- * @returns {Array} Returns `array`.
- */
- function reorder(array, indexes) {
- var arrLength = array.length,
- length = nativeMin(indexes.length, arrLength),
- oldArray = arrayCopy(array);
-
- while (length--) {
- var index = indexes[length];
- array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
- }
- return array;
- }
-
- /**
- * Sets metadata for `func`.
- *
- * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
- * period of time, it will trip its breaker and transition to an identity function
- * to avoid garbage collection pauses in V8. See [V8 issue 2070](https://code.google.com/p/v8/issues/detail?id=2070)
- * for more details.
- *
- * @private
- * @param {Function} func The function to associate metadata with.
- * @param {*} data The metadata.
- * @returns {Function} Returns `func`.
- */
- var setData = (function() {
- var count = 0,
- lastCalled = 0;
-
- return function(key, value) {
- var stamp = now(),
- remaining = HOT_SPAN - (stamp - lastCalled);
-
- lastCalled = stamp;
- if (remaining > 0) {
- if (++count >= HOT_COUNT) {
- return key;
- }
- } else {
- count = 0;
- }
- return baseSetData(key, value);
- };
- }());
-
- /**
- * A fallback implementation of `Object.keys` which creates an array of the
- * own enumerable property names of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
- function shimKeys(object) {
- var props = keysIn(object),
- propsLength = props.length,
- length = propsLength && object.length;
-
- var allowIndexes = !!length && isLength(length) &&
- (isArray(object) || isArguments(object));
-
- var index = -1,
- result = [];
-
- while (++index < propsLength) {
- var key = props[index];
- if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
- result.push(key);
- }
- }
- return result;
- }
-
- /**
- * Converts `value` to an array-like object if it's not one.
- *
- * @private
- * @param {*} value The value to process.
- * @returns {Array|Object} Returns the array-like object.
- */
- function toIterable(value) {
- if (value == null) {
- return [];
- }
- if (!isArrayLike(value)) {
- return values(value);
- }
- return isObject(value) ? value : Object(value);
- }
-
- /**
- * Converts `value` to an object if it's not one.
- *
- * @private
- * @param {*} value The value to process.
- * @returns {Object} Returns the object.
- */
- function toObject(value) {
- return isObject(value) ? value : Object(value);
- }
-
- /**
- * Converts `value` to property path array if it's not one.
- *
- * @private
- * @param {*} value The value to process.
- * @returns {Array} Returns the property path array.
- */
- function toPath(value) {
- if (isArray(value)) {
- return value;
- }
- var result = [];
- baseToString(value).replace(rePropName, function(match, number, quote, string) {
- result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
- });
- return result;
- }
-
- /**
- * Creates a clone of `wrapper`.
- *
- * @private
- * @param {Object} wrapper The wrapper to clone.
- * @returns {Object} Returns the cloned wrapper.
- */
- function wrapperClone(wrapper) {
- return wrapper instanceof LazyWrapper
- ? wrapper.clone()
- : new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates an array of elements split into groups the length of `size`.
- * If `collection` can't be split evenly, the final chunk will be the remaining
- * elements.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to process.
- * @param {number} [size=1] The length of each chunk.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the new array containing chunks.
- * @example
- *
- * _.chunk(['a', 'b', 'c', 'd'], 2);
- * // => [['a', 'b'], ['c', 'd']]
- *
- * _.chunk(['a', 'b', 'c', 'd'], 3);
- * // => [['a', 'b', 'c'], ['d']]
- */
- function chunk(array, size, guard) {
- if (guard ? isIterateeCall(array, size, guard) : size == null) {
- size = 1;
- } else {
- size = nativeMax(nativeFloor(size) || 1, 1);
- }
- var index = 0,
- length = array ? array.length : 0,
- resIndex = -1,
- result = Array(nativeCeil(length / size));
-
- while (index < length) {
- result[++resIndex] = baseSlice(array, index, (index += size));
- }
- return result;
- }
-
- /**
- * Creates an array with all falsey values removed. The values `false`, `null`,
- * `0`, `""`, `undefined`, and `NaN` are falsey.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to compact.
- * @returns {Array} Returns the new array of filtered values.
- * @example
- *
- * _.compact([0, 1, false, 2, '', 3]);
- * // => [1, 2, 3]
- */
- function compact(array) {
- var index = -1,
- length = array ? array.length : 0,
- resIndex = -1,
- result = [];
-
- while (++index < length) {
- var value = array[index];
- if (value) {
- result[++resIndex] = value;
- }
- }
- return result;
- }
-
- /**
- * Creates an array of unique `array` values not included in the other
- * provided arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to inspect.
- * @param {...Array} [values] The arrays of values to exclude.
- * @returns {Array} Returns the new array of filtered values.
- * @example
- *
- * _.difference([1, 2, 3], [4, 2]);
- * // => [1, 3]
- */
- var difference = restParam(function(array, values) {
- return (isObjectLike(array) && isArrayLike(array))
- ? baseDifference(array, baseFlatten(values, false, true))
- : [];
- });
-
- /**
- * Creates a slice of `array` with `n` elements dropped from the beginning.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {number} [n=1] The number of elements to drop.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.drop([1, 2, 3]);
- * // => [2, 3]
- *
- * _.drop([1, 2, 3], 2);
- * // => [3]
- *
- * _.drop([1, 2, 3], 5);
- * // => []
- *
- * _.drop([1, 2, 3], 0);
- * // => [1, 2, 3]
- */
- function drop(array, n, guard) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (guard ? isIterateeCall(array, n, guard) : n == null) {
- n = 1;
- }
- return baseSlice(array, n < 0 ? 0 : n);
- }
-
- /**
- * Creates a slice of `array` with `n` elements dropped from the end.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {number} [n=1] The number of elements to drop.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.dropRight([1, 2, 3]);
- * // => [1, 2]
- *
- * _.dropRight([1, 2, 3], 2);
- * // => [1]
- *
- * _.dropRight([1, 2, 3], 5);
- * // => []
- *
- * _.dropRight([1, 2, 3], 0);
- * // => [1, 2, 3]
- */
- function dropRight(array, n, guard) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (guard ? isIterateeCall(array, n, guard) : n == null) {
- n = 1;
- }
- n = length - (+n || 0);
- return baseSlice(array, 0, n < 0 ? 0 : n);
- }
-
- /**
- * Creates a slice of `array` excluding elements dropped from the end.
- * Elements are dropped until `predicate` returns falsey. The predicate is
- * bound to `thisArg` and invoked with three arguments: (value, index, array).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that match the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.dropRightWhile([1, 2, 3], function(n) {
- * return n > 1;
- * });
- * // => [1]
- *
- * var users = [
- * { 'user': 'barney', 'active': true },
- * { 'user': 'fred', 'active': false },
- * { 'user': 'pebbles', 'active': false }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.dropRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
- * // => ['barney', 'fred']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.dropRightWhile(users, 'active', false), 'user');
- * // => ['barney']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.dropRightWhile(users, 'active'), 'user');
- * // => ['barney', 'fred', 'pebbles']
- */
- function dropRightWhile(array, predicate, thisArg) {
- return (array && array.length)
- ? baseWhile(array, getCallback(predicate, thisArg, 3), true, true)
- : [];
- }
-
- /**
- * Creates a slice of `array` excluding elements dropped from the beginning.
- * Elements are dropped until `predicate` returns falsey. The predicate is
- * bound to `thisArg` and invoked with three arguments: (value, index, array).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.dropWhile([1, 2, 3], function(n) {
- * return n < 3;
- * });
- * // => [3]
- *
- * var users = [
- * { 'user': 'barney', 'active': false },
- * { 'user': 'fred', 'active': false },
- * { 'user': 'pebbles', 'active': true }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.dropWhile(users, { 'user': 'barney', 'active': false }), 'user');
- * // => ['fred', 'pebbles']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.dropWhile(users, 'active', false), 'user');
- * // => ['pebbles']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.dropWhile(users, 'active'), 'user');
- * // => ['barney', 'fred', 'pebbles']
- */
- function dropWhile(array, predicate, thisArg) {
- return (array && array.length)
- ? baseWhile(array, getCallback(predicate, thisArg, 3), true)
- : [];
- }
-
- /**
- * Fills elements of `array` with `value` from `start` up to, but not
- * including, `end`.
- *
- * **Note:** This method mutates `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to fill.
- * @param {*} value The value to fill `array` with.
- * @param {number} [start=0] The start position.
- * @param {number} [end=array.length] The end position.
- * @returns {Array} Returns `array`.
- * @example
- *
- * var array = [1, 2, 3];
- *
- * _.fill(array, 'a');
- * console.log(array);
- * // => ['a', 'a', 'a']
- *
- * _.fill(Array(3), 2);
- * // => [2, 2, 2]
- *
- * _.fill([4, 6, 8], '*', 1, 2);
- * // => [4, '*', 8]
- */
- function fill(array, value, start, end) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
- start = 0;
- end = length;
- }
- return baseFill(array, value, start, end);
- }
-
- /**
- * This method is like `_.find` except that it returns the index of the first
- * element `predicate` returns truthy for instead of the element itself.
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {number} Returns the index of the found element, else `-1`.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'active': false },
- * { 'user': 'fred', 'active': false },
- * { 'user': 'pebbles', 'active': true }
- * ];
- *
- * _.findIndex(users, function(chr) {
- * return chr.user == 'barney';
- * });
- * // => 0
- *
- * // using the `_.matches` callback shorthand
- * _.findIndex(users, { 'user': 'fred', 'active': false });
- * // => 1
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.findIndex(users, 'active', false);
- * // => 0
- *
- * // using the `_.property` callback shorthand
- * _.findIndex(users, 'active');
- * // => 2
- */
- var findIndex = createFindIndex();
-
- /**
- * This method is like `_.findIndex` except that it iterates over elements
- * of `collection` from right to left.
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {number} Returns the index of the found element, else `-1`.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'active': true },
- * { 'user': 'fred', 'active': false },
- * { 'user': 'pebbles', 'active': false }
- * ];
- *
- * _.findLastIndex(users, function(chr) {
- * return chr.user == 'pebbles';
- * });
- * // => 2
- *
- * // using the `_.matches` callback shorthand
- * _.findLastIndex(users, { 'user': 'barney', 'active': true });
- * // => 0
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.findLastIndex(users, 'active', false);
- * // => 2
- *
- * // using the `_.property` callback shorthand
- * _.findLastIndex(users, 'active');
- * // => 0
- */
- var findLastIndex = createFindIndex(true);
-
- /**
- * Gets the first element of `array`.
- *
- * @static
- * @memberOf _
- * @alias head
- * @category Array
- * @param {Array} array The array to query.
- * @returns {*} Returns the first element of `array`.
- * @example
- *
- * _.first([1, 2, 3]);
- * // => 1
- *
- * _.first([]);
- * // => undefined
- */
- function first(array) {
- return array ? array[0] : undefined;
- }
-
- /**
- * Flattens a nested array. If `isDeep` is `true` the array is recursively
- * flattened, otherwise it is only flattened a single level.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to flatten.
- * @param {boolean} [isDeep] Specify a deep flatten.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the new flattened array.
- * @example
- *
- * _.flatten([1, [2, 3, [4]]]);
- * // => [1, 2, 3, [4]]
- *
- * // using `isDeep`
- * _.flatten([1, [2, 3, [4]]], true);
- * // => [1, 2, 3, 4]
- */
- function flatten(array, isDeep, guard) {
- var length = array ? array.length : 0;
- if (guard && isIterateeCall(array, isDeep, guard)) {
- isDeep = false;
- }
- return length ? baseFlatten(array, isDeep) : [];
- }
-
- /**
- * Recursively flattens a nested array.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to recursively flatten.
- * @returns {Array} Returns the new flattened array.
- * @example
- *
- * _.flattenDeep([1, [2, 3, [4]]]);
- * // => [1, 2, 3, 4]
- */
- function flattenDeep(array) {
- var length = array ? array.length : 0;
- return length ? baseFlatten(array, true) : [];
- }
-
- /**
- * Gets the index at which the first occurrence of `value` is found in `array`
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons. If `fromIndex` is negative, it is used as the offset
- * from the end of `array`. If `array` is sorted providing `true` for `fromIndex`
- * performs a faster binary search.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to search.
- * @param {*} value The value to search for.
- * @param {boolean|number} [fromIndex=0] The index to search from or `true`
- * to perform a binary search on a sorted array.
- * @returns {number} Returns the index of the matched value, else `-1`.
- * @example
- *
- * _.indexOf([1, 2, 1, 2], 2);
- * // => 1
- *
- * // using `fromIndex`
- * _.indexOf([1, 2, 1, 2], 2, 2);
- * // => 3
- *
- * // performing a binary search
- * _.indexOf([1, 1, 2, 2], 2, true);
- * // => 2
- */
- function indexOf(array, value, fromIndex) {
- var length = array ? array.length : 0;
- if (!length) {
- return -1;
- }
- if (typeof fromIndex == 'number') {
- fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
- } else if (fromIndex) {
- var index = binaryIndex(array, value);
- if (index < length &&
- (value === value ? (value === array[index]) : (array[index] !== array[index]))) {
- return index;
- }
- return -1;
- }
- return baseIndexOf(array, value, fromIndex || 0);
- }
-
- /**
- * Gets all but the last element of `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.initial([1, 2, 3]);
- * // => [1, 2]
- */
- function initial(array) {
- return dropRight(array, 1);
- }
-
- /**
- * Creates an array of unique values that are included in all of the provided
- * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to inspect.
- * @returns {Array} Returns the new array of shared values.
- * @example
- * _.intersection([1, 2], [4, 2], [2, 1]);
- * // => [2]
- */
- var intersection = restParam(function(arrays) {
- var othLength = arrays.length,
- othIndex = othLength,
- caches = Array(length),
- indexOf = getIndexOf(),
- isCommon = indexOf == baseIndexOf,
- result = [];
-
- while (othIndex--) {
- var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
- caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
- }
- var array = arrays[0],
- index = -1,
- length = array ? array.length : 0,
- seen = caches[0];
-
- outer:
- while (++index < length) {
- value = array[index];
- if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
- var othIndex = othLength;
- while (--othIndex) {
- var cache = caches[othIndex];
- if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
- continue outer;
- }
- }
- if (seen) {
- seen.push(value);
- }
- result.push(value);
- }
- }
- return result;
- });
-
- /**
- * Gets the last element of `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @returns {*} Returns the last element of `array`.
- * @example
- *
- * _.last([1, 2, 3]);
- * // => 3
- */
- function last(array) {
- var length = array ? array.length : 0;
- return length ? array[length - 1] : undefined;
- }
-
- /**
- * This method is like `_.indexOf` except that it iterates over elements of
- * `array` from right to left.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to search.
- * @param {*} value The value to search for.
- * @param {boolean|number} [fromIndex=array.length-1] The index to search from
- * or `true` to perform a binary search on a sorted array.
- * @returns {number} Returns the index of the matched value, else `-1`.
- * @example
- *
- * _.lastIndexOf([1, 2, 1, 2], 2);
- * // => 3
- *
- * // using `fromIndex`
- * _.lastIndexOf([1, 2, 1, 2], 2, 2);
- * // => 1
- *
- * // performing a binary search
- * _.lastIndexOf([1, 1, 2, 2], 2, true);
- * // => 3
- */
- function lastIndexOf(array, value, fromIndex) {
- var length = array ? array.length : 0;
- if (!length) {
- return -1;
- }
- var index = length;
- if (typeof fromIndex == 'number') {
- index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
- } else if (fromIndex) {
- index = binaryIndex(array, value, true) - 1;
- var other = array[index];
- if (value === value ? (value === other) : (other !== other)) {
- return index;
- }
- return -1;
- }
- if (value !== value) {
- return indexOfNaN(array, index, true);
- }
- while (index--) {
- if (array[index] === value) {
- return index;
- }
- }
- return -1;
- }
-
- /**
- * Removes all provided values from `array` using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * **Note:** Unlike `_.without`, this method mutates `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to modify.
- * @param {...*} [values] The values to remove.
- * @returns {Array} Returns `array`.
- * @example
- *
- * var array = [1, 2, 3, 1, 2, 3];
- *
- * _.pull(array, 2, 3);
- * console.log(array);
- * // => [1, 1]
- */
- function pull() {
- var args = arguments,
- array = args[0];
-
- if (!(array && array.length)) {
- return array;
- }
- var index = 0,
- indexOf = getIndexOf(),
- length = args.length;
-
- while (++index < length) {
- var fromIndex = 0,
- value = args[index];
-
- while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
- splice.call(array, fromIndex, 1);
- }
- }
- return array;
- }
-
- /**
- * Removes elements from `array` corresponding to the given indexes and returns
- * an array of the removed elements. Indexes may be specified as an array of
- * indexes or as individual arguments.
- *
- * **Note:** Unlike `_.at`, this method mutates `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to modify.
- * @param {...(number|number[])} [indexes] The indexes of elements to remove,
- * specified as individual indexes or arrays of indexes.
- * @returns {Array} Returns the new array of removed elements.
- * @example
- *
- * var array = [5, 10, 15, 20];
- * var evens = _.pullAt(array, 1, 3);
- *
- * console.log(array);
- * // => [5, 15]
- *
- * console.log(evens);
- * // => [10, 20]
- */
- var pullAt = restParam(function(array, indexes) {
- indexes = baseFlatten(indexes);
-
- var result = baseAt(array, indexes);
- basePullAt(array, indexes.sort(baseCompareAscending));
- return result;
- });
-
- /**
- * Removes all elements from `array` that `predicate` returns truthy for
- * and returns an array of the removed elements. The predicate is bound to
- * `thisArg` and invoked with three arguments: (value, index, array).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * **Note:** Unlike `_.filter`, this method mutates `array`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to modify.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the new array of removed elements.
- * @example
- *
- * var array = [1, 2, 3, 4];
- * var evens = _.remove(array, function(n) {
- * return n % 2 == 0;
- * });
- *
- * console.log(array);
- * // => [1, 3]
- *
- * console.log(evens);
- * // => [2, 4]
- */
- function remove(array, predicate, thisArg) {
- var result = [];
- if (!(array && array.length)) {
- return result;
- }
- var index = -1,
- indexes = [],
- length = array.length;
-
- predicate = getCallback(predicate, thisArg, 3);
- while (++index < length) {
- var value = array[index];
- if (predicate(value, index, array)) {
- result.push(value);
- indexes.push(index);
- }
- }
- basePullAt(array, indexes);
- return result;
- }
-
- /**
- * Gets all but the first element of `array`.
- *
- * @static
- * @memberOf _
- * @alias tail
- * @category Array
- * @param {Array} array The array to query.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.rest([1, 2, 3]);
- * // => [2, 3]
- */
- function rest(array) {
- return drop(array, 1);
- }
-
- /**
- * Creates a slice of `array` from `start` up to, but not including, `end`.
- *
- * **Note:** This method is used instead of `Array#slice` to support node
- * lists in IE < 9 and to ensure dense arrays are returned.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to slice.
- * @param {number} [start=0] The start position.
- * @param {number} [end=array.length] The end position.
- * @returns {Array} Returns the slice of `array`.
- */
- function slice(array, start, end) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
- start = 0;
- end = length;
- }
- return baseSlice(array, start, end);
- }
-
- /**
- * Uses a binary search to determine the lowest index at which `value` should
- * be inserted into `array` in order to maintain its sort order. If an iteratee
- * function is provided it is invoked for `value` and each element of `array`
- * to compute their sort ranking. The iteratee is bound to `thisArg` and
- * invoked with one argument; (value).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The sorted array to inspect.
- * @param {*} value The value to evaluate.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {number} Returns the index at which `value` should be inserted
- * into `array`.
- * @example
- *
- * _.sortedIndex([30, 50], 40);
- * // => 1
- *
- * _.sortedIndex([4, 4, 5, 5], 5);
- * // => 2
- *
- * var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
- *
- * // using an iteratee function
- * _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
- * return this.data[word];
- * }, dict);
- * // => 1
- *
- * // using the `_.property` callback shorthand
- * _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
- * // => 1
- */
- var sortedIndex = createSortedIndex();
-
- /**
- * This method is like `_.sortedIndex` except that it returns the highest
- * index at which `value` should be inserted into `array` in order to
- * maintain its sort order.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The sorted array to inspect.
- * @param {*} value The value to evaluate.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {number} Returns the index at which `value` should be inserted
- * into `array`.
- * @example
- *
- * _.sortedLastIndex([4, 4, 5, 5], 5);
- * // => 4
- */
- var sortedLastIndex = createSortedIndex(true);
-
- /**
- * Creates a slice of `array` with `n` elements taken from the beginning.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {number} [n=1] The number of elements to take.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.take([1, 2, 3]);
- * // => [1]
- *
- * _.take([1, 2, 3], 2);
- * // => [1, 2]
- *
- * _.take([1, 2, 3], 5);
- * // => [1, 2, 3]
- *
- * _.take([1, 2, 3], 0);
- * // => []
- */
- function take(array, n, guard) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (guard ? isIterateeCall(array, n, guard) : n == null) {
- n = 1;
- }
- return baseSlice(array, 0, n < 0 ? 0 : n);
- }
-
- /**
- * Creates a slice of `array` with `n` elements taken from the end.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {number} [n=1] The number of elements to take.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.takeRight([1, 2, 3]);
- * // => [3]
- *
- * _.takeRight([1, 2, 3], 2);
- * // => [2, 3]
- *
- * _.takeRight([1, 2, 3], 5);
- * // => [1, 2, 3]
- *
- * _.takeRight([1, 2, 3], 0);
- * // => []
- */
- function takeRight(array, n, guard) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (guard ? isIterateeCall(array, n, guard) : n == null) {
- n = 1;
- }
- n = length - (+n || 0);
- return baseSlice(array, n < 0 ? 0 : n);
- }
-
- /**
- * Creates a slice of `array` with elements taken from the end. Elements are
- * taken until `predicate` returns falsey. The predicate is bound to `thisArg`
- * and invoked with three arguments: (value, index, array).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.takeRightWhile([1, 2, 3], function(n) {
- * return n > 1;
- * });
- * // => [2, 3]
- *
- * var users = [
- * { 'user': 'barney', 'active': true },
- * { 'user': 'fred', 'active': false },
- * { 'user': 'pebbles', 'active': false }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.takeRightWhile(users, { 'user': 'pebbles', 'active': false }), 'user');
- * // => ['pebbles']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.takeRightWhile(users, 'active', false), 'user');
- * // => ['fred', 'pebbles']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.takeRightWhile(users, 'active'), 'user');
- * // => []
- */
- function takeRightWhile(array, predicate, thisArg) {
- return (array && array.length)
- ? baseWhile(array, getCallback(predicate, thisArg, 3), false, true)
- : [];
- }
-
- /**
- * Creates a slice of `array` with elements taken from the beginning. Elements
- * are taken until `predicate` returns falsey. The predicate is bound to
- * `thisArg` and invoked with three arguments: (value, index, array).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to query.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the slice of `array`.
- * @example
- *
- * _.takeWhile([1, 2, 3], function(n) {
- * return n < 3;
- * });
- * // => [1, 2]
- *
- * var users = [
- * { 'user': 'barney', 'active': false },
- * { 'user': 'fred', 'active': false},
- * { 'user': 'pebbles', 'active': true }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.takeWhile(users, { 'user': 'barney', 'active': false }), 'user');
- * // => ['barney']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.takeWhile(users, 'active', false), 'user');
- * // => ['barney', 'fred']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.takeWhile(users, 'active'), 'user');
- * // => []
- */
- function takeWhile(array, predicate, thisArg) {
- return (array && array.length)
- ? baseWhile(array, getCallback(predicate, thisArg, 3))
- : [];
- }
-
- /**
- * Creates an array of unique values, in order, from all of the provided arrays
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to inspect.
- * @returns {Array} Returns the new array of combined values.
- * @example
- *
- * _.union([1, 2], [4, 2], [2, 1]);
- * // => [1, 2, 4]
- */
- var union = restParam(function(arrays) {
- return baseUniq(baseFlatten(arrays, false, true));
- });
-
- /**
- * Creates a duplicate-free version of an array, using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons, in which only the first occurence of each element
- * is kept. Providing `true` for `isSorted` performs a faster search algorithm
- * for sorted arrays. If an iteratee function is provided it is invoked for
- * each element in the array to generate the criterion by which uniqueness
- * is computed. The `iteratee` is bound to `thisArg` and invoked with three
- * arguments: (value, index, array).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @alias unique
- * @category Array
- * @param {Array} array The array to inspect.
- * @param {boolean} [isSorted] Specify the array is sorted.
- * @param {Function|Object|string} [iteratee] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array} Returns the new duplicate-value-free array.
- * @example
- *
- * _.uniq([2, 1, 2]);
- * // => [2, 1]
- *
- * // using `isSorted`
- * _.uniq([1, 1, 2], true);
- * // => [1, 2]
- *
- * // using an iteratee function
- * _.uniq([1, 2.5, 1.5, 2], function(n) {
- * return this.floor(n);
- * }, Math);
- * // => [1, 2.5]
- *
- * // using the `_.property` callback shorthand
- * _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
- * // => [{ 'x': 1 }, { 'x': 2 }]
- */
- function uniq(array, isSorted, iteratee, thisArg) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- if (isSorted != null && typeof isSorted != 'boolean') {
- thisArg = iteratee;
- iteratee = isIterateeCall(array, isSorted, thisArg) ? undefined : isSorted;
- isSorted = false;
- }
- var callback = getCallback();
- if (!(iteratee == null && callback === baseCallback)) {
- iteratee = callback(iteratee, thisArg, 3);
- }
- return (isSorted && getIndexOf() == baseIndexOf)
- ? sortedUniq(array, iteratee)
- : baseUniq(array, iteratee);
- }
-
- /**
- * This method is like `_.zip` except that it accepts an array of grouped
- * elements and creates an array regrouping the elements to their pre-zip
- * configuration.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array of grouped elements to process.
- * @returns {Array} Returns the new array of regrouped elements.
- * @example
- *
- * var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
- * // => [['fred', 30, true], ['barney', 40, false]]
- *
- * _.unzip(zipped);
- * // => [['fred', 'barney'], [30, 40], [true, false]]
- */
- function unzip(array) {
- if (!(array && array.length)) {
- return [];
- }
- var index = -1,
- length = 0;
-
- array = arrayFilter(array, function(group) {
- if (isArrayLike(group)) {
- length = nativeMax(group.length, length);
- return true;
- }
- });
- var result = Array(length);
- while (++index < length) {
- result[index] = arrayMap(array, baseProperty(index));
- }
- return result;
- }
-
- /**
- * This method is like `_.unzip` except that it accepts an iteratee to specify
- * how regrouped values should be combined. The `iteratee` is bound to `thisArg`
- * and invoked with four arguments: (accumulator, value, index, group).
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array of grouped elements to process.
- * @param {Function} [iteratee] The function to combine regrouped values.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array} Returns the new array of regrouped elements.
- * @example
- *
- * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
- * // => [[1, 10, 100], [2, 20, 200]]
- *
- * _.unzipWith(zipped, _.add);
- * // => [3, 30, 300]
- */
- function unzipWith(array, iteratee, thisArg) {
- var length = array ? array.length : 0;
- if (!length) {
- return [];
- }
- var result = unzip(array);
- if (iteratee == null) {
- return result;
- }
- iteratee = bindCallback(iteratee, thisArg, 4);
- return arrayMap(result, function(group) {
- return arrayReduce(group, iteratee, undefined, true);
- });
- }
-
- /**
- * Creates an array excluding all provided values using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {Array} array The array to filter.
- * @param {...*} [values] The values to exclude.
- * @returns {Array} Returns the new array of filtered values.
- * @example
- *
- * _.without([1, 2, 1, 3], 1, 2);
- * // => [3]
- */
- var without = restParam(function(array, values) {
- return isArrayLike(array)
- ? baseDifference(array, values)
- : [];
- });
-
- /**
- * Creates an array of unique values that is the [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
- * of the provided arrays.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to inspect.
- * @returns {Array} Returns the new array of values.
- * @example
- *
- * _.xor([1, 2], [4, 2]);
- * // => [1, 4]
- */
- function xor() {
- var index = -1,
- length = arguments.length;
-
- while (++index < length) {
- var array = arguments[index];
- if (isArrayLike(array)) {
- var result = result
- ? arrayPush(baseDifference(result, array), baseDifference(array, result))
- : array;
- }
- }
- return result ? baseUniq(result) : [];
- }
-
- /**
- * Creates an array of grouped elements, the first of which contains the first
- * elements of the given arrays, the second of which contains the second elements
- * of the given arrays, and so on.
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to process.
- * @returns {Array} Returns the new array of grouped elements.
- * @example
- *
- * _.zip(['fred', 'barney'], [30, 40], [true, false]);
- * // => [['fred', 30, true], ['barney', 40, false]]
- */
- var zip = restParam(unzip);
-
- /**
- * The inverse of `_.pairs`; this method returns an object composed from arrays
- * of property names and values. Provide either a single two dimensional array,
- * e.g. `[[key1, value1], [key2, value2]]` or two arrays, one of property names
- * and one of corresponding values.
- *
- * @static
- * @memberOf _
- * @alias object
- * @category Array
- * @param {Array} props The property names.
- * @param {Array} [values=[]] The property values.
- * @returns {Object} Returns the new object.
- * @example
- *
- * _.zipObject([['fred', 30], ['barney', 40]]);
- * // => { 'fred': 30, 'barney': 40 }
- *
- * _.zipObject(['fred', 'barney'], [30, 40]);
- * // => { 'fred': 30, 'barney': 40 }
- */
- function zipObject(props, values) {
- var index = -1,
- length = props ? props.length : 0,
- result = {};
-
- if (length && !values && !isArray(props[0])) {
- values = [];
- }
- while (++index < length) {
- var key = props[index];
- if (values) {
- result[key] = values[index];
- } else if (key) {
- result[key[0]] = key[1];
- }
- }
- return result;
- }
-
- /**
- * This method is like `_.zip` except that it accepts an iteratee to specify
- * how grouped values should be combined. The `iteratee` is bound to `thisArg`
- * and invoked with four arguments: (accumulator, value, index, group).
- *
- * @static
- * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to process.
- * @param {Function} [iteratee] The function to combine grouped values.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array} Returns the new array of grouped elements.
- * @example
- *
- * _.zipWith([1, 2], [10, 20], [100, 200], _.add);
- * // => [111, 222]
- */
- var zipWith = restParam(function(arrays) {
- var length = arrays.length,
- iteratee = length > 2 ? arrays[length - 2] : undefined,
- thisArg = length > 1 ? arrays[length - 1] : undefined;
-
- if (length > 2 && typeof iteratee == 'function') {
- length -= 2;
- } else {
- iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined;
- thisArg = undefined;
- }
- arrays.length = length;
- return unzipWith(arrays, iteratee, thisArg);
- });
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a `lodash` object that wraps `value` with explicit method
- * chaining enabled.
- *
- * @static
- * @memberOf _
- * @category Chain
- * @param {*} value The value to wrap.
- * @returns {Object} Returns the new `lodash` wrapper instance.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36 },
- * { 'user': 'fred', 'age': 40 },
- * { 'user': 'pebbles', 'age': 1 }
- * ];
- *
- * var youngest = _.chain(users)
- * .sortBy('age')
- * .map(function(chr) {
- * return chr.user + ' is ' + chr.age;
- * })
- * .first()
- * .value();
- * // => 'pebbles is 1'
- */
- function chain(value) {
- var result = lodash(value);
- result.__chain__ = true;
- return result;
- }
-
- /**
- * This method invokes `interceptor` and returns `value`. The interceptor is
- * bound to `thisArg` and invoked with one argument; (value). The purpose of
- * this method is to "tap into" a method chain in order to perform operations
- * on intermediate results within the chain.
- *
- * @static
- * @memberOf _
- * @category Chain
- * @param {*} value The value to provide to `interceptor`.
- * @param {Function} interceptor The function to invoke.
- * @param {*} [thisArg] The `this` binding of `interceptor`.
- * @returns {*} Returns `value`.
- * @example
- *
- * _([1, 2, 3])
- * .tap(function(array) {
- * array.pop();
- * })
- * .reverse()
- * .value();
- * // => [2, 1]
- */
- function tap(value, interceptor, thisArg) {
- interceptor.call(thisArg, value);
- return value;
- }
-
- /**
- * This method is like `_.tap` except that it returns the result of `interceptor`.
- *
- * @static
- * @memberOf _
- * @category Chain
- * @param {*} value The value to provide to `interceptor`.
- * @param {Function} interceptor The function to invoke.
- * @param {*} [thisArg] The `this` binding of `interceptor`.
- * @returns {*} Returns the result of `interceptor`.
- * @example
- *
- * _(' abc ')
- * .chain()
- * .trim()
- * .thru(function(value) {
- * return [value];
- * })
- * .value();
- * // => ['abc']
- */
- function thru(value, interceptor, thisArg) {
- return interceptor.call(thisArg, value);
- }
-
- /**
- * Enables explicit method chaining on the wrapper object.
- *
- * @name chain
- * @memberOf _
- * @category Chain
- * @returns {Object} Returns the new `lodash` wrapper instance.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36 },
- * { 'user': 'fred', 'age': 40 }
- * ];
- *
- * // without explicit chaining
- * _(users).first();
- * // => { 'user': 'barney', 'age': 36 }
- *
- * // with explicit chaining
- * _(users).chain()
- * .first()
- * .pick('user')
- * .value();
- * // => { 'user': 'barney' }
- */
- function wrapperChain() {
- return chain(this);
- }
-
- /**
- * Executes the chained sequence and returns the wrapped result.
- *
- * @name commit
- * @memberOf _
- * @category Chain
- * @returns {Object} Returns the new `lodash` wrapper instance.
- * @example
- *
- * var array = [1, 2];
- * var wrapped = _(array).push(3);
- *
- * console.log(array);
- * // => [1, 2]
- *
- * wrapped = wrapped.commit();
- * console.log(array);
- * // => [1, 2, 3]
- *
- * wrapped.last();
- * // => 3
- *
- * console.log(array);
- * // => [1, 2, 3]
- */
- function wrapperCommit() {
- return new LodashWrapper(this.value(), this.__chain__);
- }
-
- /**
- * Creates a new array joining a wrapped array with any additional arrays
- * and/or values.
- *
- * @name concat
- * @memberOf _
- * @category Chain
- * @param {...*} [values] The values to concatenate.
- * @returns {Array} Returns the new concatenated array.
- * @example
- *
- * var array = [1];
- * var wrapped = _(array).concat(2, [3], [[4]]);
- *
- * console.log(wrapped.value());
- * // => [1, 2, 3, [4]]
- *
- * console.log(array);
- * // => [1]
- */
- var wrapperConcat = restParam(function(values) {
- values = baseFlatten(values);
- return this.thru(function(array) {
- return arrayConcat(isArray(array) ? array : [toObject(array)], values);
- });
- });
-
- /**
- * Creates a clone of the chained sequence planting `value` as the wrapped value.
- *
- * @name plant
- * @memberOf _
- * @category Chain
- * @returns {Object} Returns the new `lodash` wrapper instance.
- * @example
- *
- * var array = [1, 2];
- * var wrapped = _(array).map(function(value) {
- * return Math.pow(value, 2);
- * });
- *
- * var other = [3, 4];
- * var otherWrapped = wrapped.plant(other);
- *
- * otherWrapped.value();
- * // => [9, 16]
- *
- * wrapped.value();
- * // => [1, 4]
- */
- function wrapperPlant(value) {
- var result,
- parent = this;
-
- while (parent instanceof baseLodash) {
- var clone = wrapperClone(parent);
- if (result) {
- previous.__wrapped__ = clone;
- } else {
- result = clone;
- }
- var previous = clone;
- parent = parent.__wrapped__;
- }
- previous.__wrapped__ = value;
- return result;
- }
-
- /**
- * Reverses the wrapped array so the first element becomes the last, the
- * second element becomes the second to last, and so on.
- *
- * **Note:** This method mutates the wrapped array.
- *
- * @name reverse
- * @memberOf _
- * @category Chain
- * @returns {Object} Returns the new reversed `lodash` wrapper instance.
- * @example
- *
- * var array = [1, 2, 3];
- *
- * _(array).reverse().value()
- * // => [3, 2, 1]
- *
- * console.log(array);
- * // => [3, 2, 1]
- */
- function wrapperReverse() {
- var value = this.__wrapped__;
-
- var interceptor = function(value) {
- return (wrapped && wrapped.__dir__ < 0) ? value : value.reverse();
- };
- if (value instanceof LazyWrapper) {
- var wrapped = value;
- if (this.__actions__.length) {
- wrapped = new LazyWrapper(this);
- }
- wrapped = wrapped.reverse();
- wrapped.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
- return new LodashWrapper(wrapped, this.__chain__);
- }
- return this.thru(interceptor);
- }
-
- /**
- * Produces the result of coercing the unwrapped value to a string.
- *
- * @name toString
- * @memberOf _
- * @category Chain
- * @returns {string} Returns the coerced string value.
- * @example
- *
- * _([1, 2, 3]).toString();
- * // => '1,2,3'
- */
- function wrapperToString() {
- return (this.value() + '');
- }
-
- /**
- * Executes the chained sequence to extract the unwrapped value.
- *
- * @name value
- * @memberOf _
- * @alias run, toJSON, valueOf
- * @category Chain
- * @returns {*} Returns the resolved unwrapped value.
- * @example
- *
- * _([1, 2, 3]).value();
- * // => [1, 2, 3]
- */
- function wrapperValue() {
- return baseWrapperValue(this.__wrapped__, this.__actions__);
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates an array of elements corresponding to the given keys, or indexes,
- * of `collection`. Keys may be specified as individual arguments or as arrays
- * of keys.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {...(number|number[]|string|string[])} [props] The property names
- * or indexes of elements to pick, specified individually or in arrays.
- * @returns {Array} Returns the new array of picked elements.
- * @example
- *
- * _.at(['a', 'b', 'c'], [0, 2]);
- * // => ['a', 'c']
- *
- * _.at(['barney', 'fred', 'pebbles'], 0, 2);
- * // => ['barney', 'pebbles']
- */
- var at = restParam(function(collection, props) {
- return baseAt(collection, baseFlatten(props));
- });
-
- /**
- * Creates an object composed of keys generated from the results of running
- * each element of `collection` through `iteratee`. The corresponding value
- * of each key is the number of times the key was returned by `iteratee`.
- * The `iteratee` is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns the composed aggregate object.
- * @example
- *
- * _.countBy([4.3, 6.1, 6.4], function(n) {
- * return Math.floor(n);
- * });
- * // => { '4': 1, '6': 2 }
- *
- * _.countBy([4.3, 6.1, 6.4], function(n) {
- * return this.floor(n);
- * }, Math);
- * // => { '4': 1, '6': 2 }
- *
- * _.countBy(['one', 'two', 'three'], 'length');
- * // => { '3': 2, '5': 1 }
- */
- var countBy = createAggregator(function(result, value, key) {
- hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
- });
-
- /**
- * Checks if `predicate` returns truthy for **all** elements of `collection`.
- * The predicate is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @alias all
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {boolean} Returns `true` if all elements pass the predicate check,
- * else `false`.
- * @example
- *
- * _.every([true, 1, null, 'yes'], Boolean);
- * // => false
- *
- * var users = [
- * { 'user': 'barney', 'active': false },
- * { 'user': 'fred', 'active': false }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.every(users, { 'user': 'barney', 'active': false });
- * // => false
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.every(users, 'active', false);
- * // => true
- *
- * // using the `_.property` callback shorthand
- * _.every(users, 'active');
- * // => false
- */
- function every(collection, predicate, thisArg) {
- var func = isArray(collection) ? arrayEvery : baseEvery;
- if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
- predicate = undefined;
- }
- if (typeof predicate != 'function' || thisArg !== undefined) {
- predicate = getCallback(predicate, thisArg, 3);
- }
- return func(collection, predicate);
- }
-
- /**
- * Iterates over elements of `collection`, returning an array of all elements
- * `predicate` returns truthy for. The predicate is bound to `thisArg` and
- * invoked with three arguments: (value, index|key, collection).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @alias select
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the new filtered array.
- * @example
- *
- * _.filter([4, 5, 6], function(n) {
- * return n % 2 == 0;
- * });
- * // => [4, 6]
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': true },
- * { 'user': 'fred', 'age': 40, 'active': false }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
- * // => ['barney']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.filter(users, 'active', false), 'user');
- * // => ['fred']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.filter(users, 'active'), 'user');
- * // => ['barney']
- */
- function filter(collection, predicate, thisArg) {
- var func = isArray(collection) ? arrayFilter : baseFilter;
- predicate = getCallback(predicate, thisArg, 3);
- return func(collection, predicate);
- }
-
- /**
- * Iterates over elements of `collection`, returning the first element
- * `predicate` returns truthy for. The predicate is bound to `thisArg` and
- * invoked with three arguments: (value, index|key, collection).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @alias detect
- * @category Collection
- * @param {Array|Object|string} collection The collection to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {*} Returns the matched element, else `undefined`.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': true },
- * { 'user': 'fred', 'age': 40, 'active': false },
- * { 'user': 'pebbles', 'age': 1, 'active': true }
- * ];
- *
- * _.result(_.find(users, function(chr) {
- * return chr.age < 40;
- * }), 'user');
- * // => 'barney'
- *
- * // using the `_.matches` callback shorthand
- * _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
- * // => 'pebbles'
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.result(_.find(users, 'active', false), 'user');
- * // => 'fred'
- *
- * // using the `_.property` callback shorthand
- * _.result(_.find(users, 'active'), 'user');
- * // => 'barney'
- */
- var find = createFind(baseEach);
-
- /**
- * This method is like `_.find` except that it iterates over elements of
- * `collection` from right to left.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {*} Returns the matched element, else `undefined`.
- * @example
- *
- * _.findLast([1, 2, 3, 4], function(n) {
- * return n % 2 == 1;
- * });
- * // => 3
- */
- var findLast = createFind(baseEachRight, true);
-
- /**
- * Performs a deep comparison between each element in `collection` and the
- * source object, returning the first element that has equivalent property
- * values.
- *
- * **Note:** This method supports comparing arrays, booleans, `Date` objects,
- * numbers, `Object` objects, regexes, and strings. Objects are compared by
- * their own, not inherited, enumerable properties. For comparing a single
- * own or inherited property value see `_.matchesProperty`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to search.
- * @param {Object} source The object of property values to match.
- * @returns {*} Returns the matched element, else `undefined`.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': true },
- * { 'user': 'fred', 'age': 40, 'active': false }
- * ];
- *
- * _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
- * // => 'barney'
- *
- * _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
- * // => 'fred'
- */
- function findWhere(collection, source) {
- return find(collection, baseMatches(source));
- }
-
- /**
- * Iterates over elements of `collection` invoking `iteratee` for each element.
- * The `iteratee` is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection). Iteratee functions may exit iteration early
- * by explicitly returning `false`.
- *
- * **Note:** As with other "Collections" methods, objects with a "length" property
- * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
- * may be used for object iteration.
- *
- * @static
- * @memberOf _
- * @alias each
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array|Object|string} Returns `collection`.
- * @example
- *
- * _([1, 2]).forEach(function(n) {
- * console.log(n);
- * }).value();
- * // => logs each value from left to right and returns the array
- *
- * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
- * console.log(n, key);
- * });
- * // => logs each value-key pair and returns the object (iteration order is not guaranteed)
- */
- var forEach = createForEach(arrayEach, baseEach);
-
- /**
- * This method is like `_.forEach` except that it iterates over elements of
- * `collection` from right to left.
- *
- * @static
- * @memberOf _
- * @alias eachRight
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array|Object|string} Returns `collection`.
- * @example
- *
- * _([1, 2]).forEachRight(function(n) {
- * console.log(n);
- * }).value();
- * // => logs each value from right to left and returns the array
- */
- var forEachRight = createForEach(arrayEachRight, baseEachRight);
-
- /**
- * Creates an object composed of keys generated from the results of running
- * each element of `collection` through `iteratee`. The corresponding value
- * of each key is an array of the elements responsible for generating the key.
- * The `iteratee` is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns the composed aggregate object.
- * @example
- *
- * _.groupBy([4.2, 6.1, 6.4], function(n) {
- * return Math.floor(n);
- * });
- * // => { '4': [4.2], '6': [6.1, 6.4] }
- *
- * _.groupBy([4.2, 6.1, 6.4], function(n) {
- * return this.floor(n);
- * }, Math);
- * // => { '4': [4.2], '6': [6.1, 6.4] }
- *
- * // using the `_.property` callback shorthand
- * _.groupBy(['one', 'two', 'three'], 'length');
- * // => { '3': ['one', 'two'], '5': ['three'] }
- */
- var groupBy = createAggregator(function(result, value, key) {
- if (hasOwnProperty.call(result, key)) {
- result[key].push(value);
- } else {
- result[key] = [value];
- }
- });
-
- /**
- * Checks if `value` is in `collection` using
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons. If `fromIndex` is negative, it is used as the offset
- * from the end of `collection`.
- *
- * @static
- * @memberOf _
- * @alias contains, include
- * @category Collection
- * @param {Array|Object|string} collection The collection to search.
- * @param {*} target The value to search for.
- * @param {number} [fromIndex=0] The index to search from.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
- * @returns {boolean} Returns `true` if a matching element is found, else `false`.
- * @example
- *
- * _.includes([1, 2, 3], 1);
- * // => true
- *
- * _.includes([1, 2, 3], 1, 2);
- * // => false
- *
- * _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
- * // => true
- *
- * _.includes('pebbles', 'eb');
- * // => true
- */
- function includes(collection, target, fromIndex, guard) {
- var length = collection ? getLength(collection) : 0;
- if (!isLength(length)) {
- collection = values(collection);
- length = collection.length;
- }
- if (typeof fromIndex != 'number' || (guard && isIterateeCall(target, fromIndex, guard))) {
- fromIndex = 0;
- } else {
- fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
- }
- return (typeof collection == 'string' || !isArray(collection) && isString(collection))
- ? (fromIndex <= length && collection.indexOf(target, fromIndex) > -1)
- : (!!length && getIndexOf(collection, target, fromIndex) > -1);
- }
-
- /**
- * Creates an object composed of keys generated from the results of running
- * each element of `collection` through `iteratee`. The corresponding value
- * of each key is the last element responsible for generating the key. The
- * iteratee function is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns the composed aggregate object.
- * @example
- *
- * var keyData = [
- * { 'dir': 'left', 'code': 97 },
- * { 'dir': 'right', 'code': 100 }
- * ];
- *
- * _.indexBy(keyData, 'dir');
- * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
- *
- * _.indexBy(keyData, function(object) {
- * return String.fromCharCode(object.code);
- * });
- * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
- *
- * _.indexBy(keyData, function(object) {
- * return this.fromCharCode(object.code);
- * }, String);
- * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
- */
- var indexBy = createAggregator(function(result, value, key) {
- result[key] = value;
- });
-
- /**
- * Invokes the method at `path` of each element in `collection`, returning
- * an array of the results of each invoked method. Any additional arguments
- * are provided to each invoked method. If `methodName` is a function it is
- * invoked for, and `this` bound to, each element in `collection`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Array|Function|string} path The path of the method to invoke or
- * the function invoked per iteration.
- * @param {...*} [args] The arguments to invoke the method with.
- * @returns {Array} Returns the array of results.
- * @example
- *
- * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
- * // => [[1, 5, 7], [1, 2, 3]]
- *
- * _.invoke([123, 456], String.prototype.split, '');
- * // => [['1', '2', '3'], ['4', '5', '6']]
- */
- var invoke = restParam(function(collection, path, args) {
- var index = -1,
- isFunc = typeof path == 'function',
- isProp = isKey(path),
- result = isArrayLike(collection) ? Array(collection.length) : [];
-
- baseEach(collection, function(value) {
- var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
- result[++index] = func ? func.apply(value, args) : invokePath(value, path, args);
- });
- return result;
- });
-
- /**
- * Creates an array of values by running each element in `collection` through
- * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
- * arguments: (value, index|key, collection).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * Many lodash methods are guarded to work as iteratees for methods like
- * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
- *
- * The guarded methods are:
- * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
- * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
- * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
- * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
- * `sum`, `uniq`, and `words`
- *
- * @static
- * @memberOf _
- * @alias collect
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array} Returns the new mapped array.
- * @example
- *
- * function timesThree(n) {
- * return n * 3;
- * }
- *
- * _.map([1, 2], timesThree);
- * // => [3, 6]
- *
- * _.map({ 'a': 1, 'b': 2 }, timesThree);
- * // => [3, 6] (iteration order is not guaranteed)
- *
- * var users = [
- * { 'user': 'barney' },
- * { 'user': 'fred' }
- * ];
- *
- * // using the `_.property` callback shorthand
- * _.map(users, 'user');
- * // => ['barney', 'fred']
- */
- function map(collection, iteratee, thisArg) {
- var func = isArray(collection) ? arrayMap : baseMap;
- iteratee = getCallback(iteratee, thisArg, 3);
- return func(collection, iteratee);
- }
-
- /**
- * Creates an array of elements split into two groups, the first of which
- * contains elements `predicate` returns truthy for, while the second of which
- * contains elements `predicate` returns falsey for. The predicate is bound
- * to `thisArg` and invoked with three arguments: (value, index|key, collection).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the array of grouped elements.
- * @example
- *
- * _.partition([1, 2, 3], function(n) {
- * return n % 2;
- * });
- * // => [[1, 3], [2]]
- *
- * _.partition([1.2, 2.3, 3.4], function(n) {
- * return this.floor(n) % 2;
- * }, Math);
- * // => [[1.2, 3.4], [2.3]]
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': false },
- * { 'user': 'fred', 'age': 40, 'active': true },
- * { 'user': 'pebbles', 'age': 1, 'active': false }
- * ];
- *
- * var mapper = function(array) {
- * return _.pluck(array, 'user');
- * };
- *
- * // using the `_.matches` callback shorthand
- * _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
- * // => [['pebbles'], ['barney', 'fred']]
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.map(_.partition(users, 'active', false), mapper);
- * // => [['barney', 'pebbles'], ['fred']]
- *
- * // using the `_.property` callback shorthand
- * _.map(_.partition(users, 'active'), mapper);
- * // => [['fred'], ['barney', 'pebbles']]
- */
- var partition = createAggregator(function(result, value, key) {
- result[key ? 0 : 1].push(value);
- }, function() { return [[], []]; });
-
- /**
- * Gets the property value of `path` from all elements in `collection`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Array|string} path The path of the property to pluck.
- * @returns {Array} Returns the property values.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36 },
- * { 'user': 'fred', 'age': 40 }
- * ];
- *
- * _.pluck(users, 'user');
- * // => ['barney', 'fred']
- *
- * var userIndex = _.indexBy(users, 'user');
- * _.pluck(userIndex, 'age');
- * // => [36, 40] (iteration order is not guaranteed)
- */
- function pluck(collection, path) {
- return map(collection, property(path));
- }
-
- /**
- * Reduces `collection` to a value which is the accumulated result of running
- * each element in `collection` through `iteratee`, where each successive
- * invocation is supplied the return value of the previous. If `accumulator`
- * is not provided the first element of `collection` is used as the initial
- * value. The `iteratee` is bound to `thisArg` and invoked with four arguments:
- * (accumulator, value, index|key, collection).
- *
- * Many lodash methods are guarded to work as iteratees for methods like
- * `_.reduce`, `_.reduceRight`, and `_.transform`.
- *
- * The guarded methods are:
- * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `sortByAll`,
- * and `sortByOrder`
- *
- * @static
- * @memberOf _
- * @alias foldl, inject
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {*} Returns the accumulated value.
- * @example
- *
- * _.reduce([1, 2], function(total, n) {
- * return total + n;
- * });
- * // => 3
- *
- * _.reduce({ 'a': 1, 'b': 2 }, function(result, n, key) {
- * result[key] = n * 3;
- * return result;
- * }, {});
- * // => { 'a': 3, 'b': 6 } (iteration order is not guaranteed)
- */
- var reduce = createReduce(arrayReduce, baseEach);
-
- /**
- * This method is like `_.reduce` except that it iterates over elements of
- * `collection` from right to left.
- *
- * @static
- * @memberOf _
- * @alias foldr
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {*} Returns the accumulated value.
- * @example
- *
- * var array = [[0, 1], [2, 3], [4, 5]];
- *
- * _.reduceRight(array, function(flattened, other) {
- * return flattened.concat(other);
- * }, []);
- * // => [4, 5, 2, 3, 0, 1]
- */
- var reduceRight = createReduce(arrayReduceRight, baseEachRight);
-
- /**
- * The opposite of `_.filter`; this method returns the elements of `collection`
- * that `predicate` does **not** return truthy for.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Array} Returns the new filtered array.
- * @example
- *
- * _.reject([1, 2, 3, 4], function(n) {
- * return n % 2 == 0;
- * });
- * // => [1, 3]
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': false },
- * { 'user': 'fred', 'age': 40, 'active': true }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
- * // => ['barney']
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.pluck(_.reject(users, 'active', false), 'user');
- * // => ['fred']
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.reject(users, 'active'), 'user');
- * // => ['barney']
- */
- function reject(collection, predicate, thisArg) {
- var func = isArray(collection) ? arrayFilter : baseFilter;
- predicate = getCallback(predicate, thisArg, 3);
- return func(collection, function(value, index, collection) {
- return !predicate(value, index, collection);
- });
- }
-
- /**
- * Gets a random element or `n` random elements from a collection.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to sample.
- * @param {number} [n] The number of elements to sample.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {*} Returns the random sample(s).
- * @example
- *
- * _.sample([1, 2, 3, 4]);
- * // => 2
- *
- * _.sample([1, 2, 3, 4], 2);
- * // => [3, 1]
- */
- function sample(collection, n, guard) {
- if (guard ? isIterateeCall(collection, n, guard) : n == null) {
- collection = toIterable(collection);
- var length = collection.length;
- return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
- }
- var index = -1,
- result = toArray(collection),
- length = result.length,
- lastIndex = length - 1;
-
- n = nativeMin(n < 0 ? 0 : (+n || 0), length);
- while (++index < n) {
- var rand = baseRandom(index, lastIndex),
- value = result[rand];
-
- result[rand] = result[index];
- result[index] = value;
- }
- result.length = n;
- return result;
- }
-
- /**
- * Creates an array of shuffled values, using a version of the
- * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to shuffle.
- * @returns {Array} Returns the new shuffled array.
- * @example
- *
- * _.shuffle([1, 2, 3, 4]);
- * // => [4, 1, 3, 2]
- */
- function shuffle(collection) {
- return sample(collection, POSITIVE_INFINITY);
- }
-
- /**
- * Gets the size of `collection` by returning its length for array-like
- * values or the number of own enumerable properties for objects.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to inspect.
- * @returns {number} Returns the size of `collection`.
- * @example
- *
- * _.size([1, 2, 3]);
- * // => 3
- *
- * _.size({ 'a': 1, 'b': 2 });
- * // => 2
- *
- * _.size('pebbles');
- * // => 7
- */
- function size(collection) {
- var length = collection ? getLength(collection) : 0;
- return isLength(length) ? length : keys(collection).length;
- }
-
- /**
- * Checks if `predicate` returns truthy for **any** element of `collection`.
- * The function returns as soon as it finds a passing value and does not iterate
- * over the entire collection. The predicate is bound to `thisArg` and invoked
- * with three arguments: (value, index|key, collection).
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @alias any
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {boolean} Returns `true` if any element passes the predicate check,
- * else `false`.
- * @example
- *
- * _.some([null, 0, 'yes', false], Boolean);
- * // => true
- *
- * var users = [
- * { 'user': 'barney', 'active': true },
- * { 'user': 'fred', 'active': false }
- * ];
- *
- * // using the `_.matches` callback shorthand
- * _.some(users, { 'user': 'barney', 'active': false });
- * // => false
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.some(users, 'active', false);
- * // => true
- *
- * // using the `_.property` callback shorthand
- * _.some(users, 'active');
- * // => true
- */
- function some(collection, predicate, thisArg) {
- var func = isArray(collection) ? arraySome : baseSome;
- if (thisArg && isIterateeCall(collection, predicate, thisArg)) {
- predicate = undefined;
- }
- if (typeof predicate != 'function' || thisArg !== undefined) {
- predicate = getCallback(predicate, thisArg, 3);
- }
- return func(collection, predicate);
- }
-
- /**
- * Creates an array of elements, sorted in ascending order by the results of
- * running each element in a collection through `iteratee`. This method performs
- * a stable sort, that is, it preserves the original sort order of equal elements.
- * The `iteratee` is bound to `thisArg` and invoked with three arguments:
- * (value, index|key, collection).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Array} Returns the new sorted array.
- * @example
- *
- * _.sortBy([1, 2, 3], function(n) {
- * return Math.sin(n);
- * });
- * // => [3, 1, 2]
- *
- * _.sortBy([1, 2, 3], function(n) {
- * return this.sin(n);
- * }, Math);
- * // => [3, 1, 2]
- *
- * var users = [
- * { 'user': 'fred' },
- * { 'user': 'pebbles' },
- * { 'user': 'barney' }
- * ];
- *
- * // using the `_.property` callback shorthand
- * _.pluck(_.sortBy(users, 'user'), 'user');
- * // => ['barney', 'fred', 'pebbles']
- */
- function sortBy(collection, iteratee, thisArg) {
- if (collection == null) {
- return [];
- }
- if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
- iteratee = undefined;
- }
- var index = -1;
- iteratee = getCallback(iteratee, thisArg, 3);
-
- var result = baseMap(collection, function(value, key, collection) {
- return { 'criteria': iteratee(value, key, collection), 'index': ++index, 'value': value };
- });
- return baseSortBy(result, compareAscending);
- }
-
- /**
- * This method is like `_.sortBy` except that it can sort by multiple iteratees
- * or property names.
- *
- * If a property name is provided for an iteratee the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If an object is provided for an iteratee the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {...(Function|Function[]|Object|Object[]|string|string[])} iteratees
- * The iteratees to sort by, specified as individual values or arrays of values.
- * @returns {Array} Returns the new sorted array.
- * @example
- *
- * var users = [
- * { 'user': 'fred', 'age': 48 },
- * { 'user': 'barney', 'age': 36 },
- * { 'user': 'fred', 'age': 42 },
- * { 'user': 'barney', 'age': 34 }
- * ];
- *
- * _.map(_.sortByAll(users, ['user', 'age']), _.values);
- * // => [['barney', 34], ['barney', 36], ['fred', 42], ['fred', 48]]
- *
- * _.map(_.sortByAll(users, 'user', function(chr) {
- * return Math.floor(chr.age / 10);
- * }), _.values);
- * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
- */
- var sortByAll = restParam(function(collection, iteratees) {
- if (collection == null) {
- return [];
- }
- var guard = iteratees[2];
- if (guard && isIterateeCall(iteratees[0], iteratees[1], guard)) {
- iteratees.length = 1;
- }
- return baseSortByOrder(collection, baseFlatten(iteratees), []);
- });
-
- /**
- * This method is like `_.sortByAll` except that it allows specifying the
- * sort orders of the iteratees to sort by. If `orders` is unspecified, all
- * values are sorted in ascending order. Otherwise, a value is sorted in
- * ascending order if its corresponding order is "asc", and descending if "desc".
- *
- * If a property name is provided for an iteratee the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If an object is provided for an iteratee the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to iterate over.
- * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
- * @param {boolean[]} [orders] The sort orders of `iteratees`.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.reduce`.
- * @returns {Array} Returns the new sorted array.
- * @example
- *
- * var users = [
- * { 'user': 'fred', 'age': 48 },
- * { 'user': 'barney', 'age': 34 },
- * { 'user': 'fred', 'age': 42 },
- * { 'user': 'barney', 'age': 36 }
- * ];
- *
- * // sort by `user` in ascending order and by `age` in descending order
- * _.map(_.sortByOrder(users, ['user', 'age'], ['asc', 'desc']), _.values);
- * // => [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 42]]
- */
- function sortByOrder(collection, iteratees, orders, guard) {
- if (collection == null) {
- return [];
- }
- if (guard && isIterateeCall(iteratees, orders, guard)) {
- orders = undefined;
- }
- if (!isArray(iteratees)) {
- iteratees = iteratees == null ? [] : [iteratees];
- }
- if (!isArray(orders)) {
- orders = orders == null ? [] : [orders];
- }
- return baseSortByOrder(collection, iteratees, orders);
- }
-
- /**
- * Performs a deep comparison between each element in `collection` and the
- * source object, returning an array of all elements that have equivalent
- * property values.
- *
- * **Note:** This method supports comparing arrays, booleans, `Date` objects,
- * numbers, `Object` objects, regexes, and strings. Objects are compared by
- * their own, not inherited, enumerable properties. For comparing a single
- * own or inherited property value see `_.matchesProperty`.
- *
- * @static
- * @memberOf _
- * @category Collection
- * @param {Array|Object|string} collection The collection to search.
- * @param {Object} source The object of property values to match.
- * @returns {Array} Returns the new filtered array.
- * @example
- *
- * var users = [
- * { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
- * { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
- * ];
- *
- * _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
- * // => ['barney']
- *
- * _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
- * // => ['fred']
- */
- function where(collection, source) {
- return filter(collection, baseMatches(source));
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Gets the number of milliseconds that have elapsed since the Unix epoch
- * (1 January 1970 00:00:00 UTC).
- *
- * @static
- * @memberOf _
- * @category Date
- * @example
- *
- * _.defer(function(stamp) {
- * console.log(_.now() - stamp);
- * }, _.now());
- * // => logs the number of milliseconds it took for the deferred function to be invoked
- */
- var now = nativeNow || function() {
- return new Date().getTime();
- };
-
- /*------------------------------------------------------------------------*/
-
- /**
- * The opposite of `_.before`; this method creates a function that invokes
- * `func` once it is called `n` or more times.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {number} n The number of calls before `func` is invoked.
- * @param {Function} func The function to restrict.
- * @returns {Function} Returns the new restricted function.
- * @example
- *
- * var saves = ['profile', 'settings'];
- *
- * var done = _.after(saves.length, function() {
- * console.log('done saving!');
- * });
- *
- * _.forEach(saves, function(type) {
- * asyncSave({ 'type': type, 'complete': done });
- * });
- * // => logs 'done saving!' after the two async saves have completed
- */
- function after(n, func) {
- if (typeof func != 'function') {
- if (typeof n == 'function') {
- var temp = n;
- n = func;
- func = temp;
- } else {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- }
- n = nativeIsFinite(n = +n) ? n : 0;
- return function() {
- if (--n < 1) {
- return func.apply(this, arguments);
- }
- };
- }
-
- /**
- * Creates a function that accepts up to `n` arguments ignoring any
- * additional arguments.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to cap arguments for.
- * @param {number} [n=func.length] The arity cap.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Function} Returns the new function.
- * @example
- *
- * _.map(['6', '8', '10'], _.ary(parseInt, 1));
- * // => [6, 8, 10]
- */
- function ary(func, n, guard) {
- if (guard && isIterateeCall(func, n, guard)) {
- n = undefined;
- }
- n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
- return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
- }
-
- /**
- * Creates a function that invokes `func`, with the `this` binding and arguments
- * of the created function, while it is called less than `n` times. Subsequent
- * calls to the created function return the result of the last `func` invocation.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {number} n The number of calls at which `func` is no longer invoked.
- * @param {Function} func The function to restrict.
- * @returns {Function} Returns the new restricted function.
- * @example
- *
- * jQuery('#add').on('click', _.before(5, addContactToList));
- * // => allows adding up to 4 contacts to the list
- */
- function before(n, func) {
- var result;
- if (typeof func != 'function') {
- if (typeof n == 'function') {
- var temp = n;
- n = func;
- func = temp;
- } else {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- }
- return function() {
- if (--n > 0) {
- result = func.apply(this, arguments);
- }
- if (n <= 1) {
- func = undefined;
- }
- return result;
- };
- }
-
- /**
- * Creates a function that invokes `func` with the `this` binding of `thisArg`
- * and prepends any additional `_.bind` arguments to those provided to the
- * bound function.
- *
- * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
- * may be used as a placeholder for partially applied arguments.
- *
- * **Note:** Unlike native `Function#bind` this method does not set the "length"
- * property of bound functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to bind.
- * @param {*} thisArg The `this` binding of `func`.
- * @param {...*} [partials] The arguments to be partially applied.
- * @returns {Function} Returns the new bound function.
- * @example
- *
- * var greet = function(greeting, punctuation) {
- * return greeting + ' ' + this.user + punctuation;
- * };
- *
- * var object = { 'user': 'fred' };
- *
- * var bound = _.bind(greet, object, 'hi');
- * bound('!');
- * // => 'hi fred!'
- *
- * // using placeholders
- * var bound = _.bind(greet, object, _, '!');
- * bound('hi');
- * // => 'hi fred!'
- */
- var bind = restParam(function(func, thisArg, partials) {
- var bitmask = BIND_FLAG;
- if (partials.length) {
- var holders = replaceHolders(partials, bind.placeholder);
- bitmask |= PARTIAL_FLAG;
- }
- return createWrapper(func, bitmask, thisArg, partials, holders);
- });
-
- /**
- * Binds methods of an object to the object itself, overwriting the existing
- * method. Method names may be specified as individual arguments or as arrays
- * of method names. If no method names are provided all enumerable function
- * properties, own and inherited, of `object` are bound.
- *
- * **Note:** This method does not set the "length" property of bound functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Object} object The object to bind and assign the bound methods to.
- * @param {...(string|string[])} [methodNames] The object method names to bind,
- * specified as individual method names or arrays of method names.
- * @returns {Object} Returns `object`.
- * @example
- *
- * var view = {
- * 'label': 'docs',
- * 'onClick': function() {
- * console.log('clicked ' + this.label);
- * }
- * };
- *
- * _.bindAll(view);
- * jQuery('#docs').on('click', view.onClick);
- * // => logs 'clicked docs' when the element is clicked
- */
- var bindAll = restParam(function(object, methodNames) {
- methodNames = methodNames.length ? baseFlatten(methodNames) : functions(object);
-
- var index = -1,
- length = methodNames.length;
-
- while (++index < length) {
- var key = methodNames[index];
- object[key] = createWrapper(object[key], BIND_FLAG, object);
- }
- return object;
- });
-
- /**
- * Creates a function that invokes the method at `object[key]` and prepends
- * any additional `_.bindKey` arguments to those provided to the bound function.
- *
- * This method differs from `_.bind` by allowing bound functions to reference
- * methods that may be redefined or don't yet exist.
- * See [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
- * for more details.
- *
- * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
- * builds, may be used as a placeholder for partially applied arguments.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Object} object The object the method belongs to.
- * @param {string} key The key of the method.
- * @param {...*} [partials] The arguments to be partially applied.
- * @returns {Function} Returns the new bound function.
- * @example
- *
- * var object = {
- * 'user': 'fred',
- * 'greet': function(greeting, punctuation) {
- * return greeting + ' ' + this.user + punctuation;
- * }
- * };
- *
- * var bound = _.bindKey(object, 'greet', 'hi');
- * bound('!');
- * // => 'hi fred!'
- *
- * object.greet = function(greeting, punctuation) {
- * return greeting + 'ya ' + this.user + punctuation;
- * };
- *
- * bound('!');
- * // => 'hiya fred!'
- *
- * // using placeholders
- * var bound = _.bindKey(object, 'greet', _, '!');
- * bound('hi');
- * // => 'hiya fred!'
- */
- var bindKey = restParam(function(object, key, partials) {
- var bitmask = BIND_FLAG | BIND_KEY_FLAG;
- if (partials.length) {
- var holders = replaceHolders(partials, bindKey.placeholder);
- bitmask |= PARTIAL_FLAG;
- }
- return createWrapper(key, bitmask, object, partials, holders);
- });
-
- /**
- * Creates a function that accepts one or more arguments of `func` that when
- * called either invokes `func` returning its result, if all `func` arguments
- * have been provided, or returns a function that accepts one or more of the
- * remaining `func` arguments, and so on. The arity of `func` may be specified
- * if `func.length` is not sufficient.
- *
- * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
- * may be used as a placeholder for provided arguments.
- *
- * **Note:** This method does not set the "length" property of curried functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to curry.
- * @param {number} [arity=func.length] The arity of `func`.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Function} Returns the new curried function.
- * @example
- *
- * var abc = function(a, b, c) {
- * return [a, b, c];
- * };
- *
- * var curried = _.curry(abc);
- *
- * curried(1)(2)(3);
- * // => [1, 2, 3]
- *
- * curried(1, 2)(3);
- * // => [1, 2, 3]
- *
- * curried(1, 2, 3);
- * // => [1, 2, 3]
- *
- * // using placeholders
- * curried(1)(_, 3)(2);
- * // => [1, 2, 3]
- */
- var curry = createCurry(CURRY_FLAG);
-
- /**
- * This method is like `_.curry` except that arguments are applied to `func`
- * in the manner of `_.partialRight` instead of `_.partial`.
- *
- * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
- * builds, may be used as a placeholder for provided arguments.
- *
- * **Note:** This method does not set the "length" property of curried functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to curry.
- * @param {number} [arity=func.length] The arity of `func`.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Function} Returns the new curried function.
- * @example
- *
- * var abc = function(a, b, c) {
- * return [a, b, c];
- * };
- *
- * var curried = _.curryRight(abc);
- *
- * curried(3)(2)(1);
- * // => [1, 2, 3]
- *
- * curried(2, 3)(1);
- * // => [1, 2, 3]
- *
- * curried(1, 2, 3);
- * // => [1, 2, 3]
- *
- * // using placeholders
- * curried(3)(1, _)(2);
- * // => [1, 2, 3]
- */
- var curryRight = createCurry(CURRY_RIGHT_FLAG);
-
- /**
- * Creates a debounced function that delays invoking `func` until after `wait`
- * milliseconds have elapsed since the last time the debounced function was
- * invoked. The debounced function comes with a `cancel` method to cancel
- * delayed invocations. Provide an options object to indicate that `func`
- * should be invoked on the leading and/or trailing edge of the `wait` timeout.
- * Subsequent calls to the debounced function return the result of the last
- * `func` invocation.
- *
- * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
- * on the trailing edge of the timeout only if the the debounced function is
- * invoked more than once during the `wait` timeout.
- *
- * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
- * for details over the differences between `_.debounce` and `_.throttle`.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to debounce.
- * @param {number} [wait=0] The number of milliseconds to delay.
- * @param {Object} [options] The options object.
- * @param {boolean} [options.leading=false] Specify invoking on the leading
- * edge of the timeout.
- * @param {number} [options.maxWait] The maximum time `func` is allowed to be
- * delayed before it is invoked.
- * @param {boolean} [options.trailing=true] Specify invoking on the trailing
- * edge of the timeout.
- * @returns {Function} Returns the new debounced function.
- * @example
- *
- * // avoid costly calculations while the window size is in flux
- * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
- *
- * // invoke `sendMail` when the click event is fired, debouncing subsequent calls
- * jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
- * 'leading': true,
- * 'trailing': false
- * }));
- *
- * // ensure `batchLog` is invoked once after 1 second of debounced calls
- * var source = new EventSource('/stream');
- * jQuery(source).on('message', _.debounce(batchLog, 250, {
- * 'maxWait': 1000
- * }));
- *
- * // cancel a debounced call
- * var todoChanges = _.debounce(batchLog, 1000);
- * Object.observe(models.todo, todoChanges);
- *
- * Object.observe(models, function(changes) {
- * if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
- * todoChanges.cancel();
- * }
- * }, ['delete']);
- *
- * // ...at some point `models.todo` is changed
- * models.todo.completed = true;
- *
- * // ...before 1 second has passed `models.todo` is deleted
- * // which cancels the debounced `todoChanges` call
- * delete models.todo;
- */
- function debounce(func, wait, options) {
- var args,
- maxTimeoutId,
- result,
- stamp,
- thisArg,
- timeoutId,
- trailingCall,
- lastCalled = 0,
- maxWait = false,
- trailing = true;
-
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- wait = wait < 0 ? 0 : (+wait || 0);
- if (options === true) {
- var leading = true;
- trailing = false;
- } else if (isObject(options)) {
- leading = !!options.leading;
- maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
- trailing = 'trailing' in options ? !!options.trailing : trailing;
- }
-
- function cancel() {
- if (timeoutId) {
- clearTimeout(timeoutId);
- }
- if (maxTimeoutId) {
- clearTimeout(maxTimeoutId);
- }
- lastCalled = 0;
- maxTimeoutId = timeoutId = trailingCall = undefined;
- }
-
- function complete(isCalled, id) {
- if (id) {
- clearTimeout(id);
- }
- maxTimeoutId = timeoutId = trailingCall = undefined;
- if (isCalled) {
- lastCalled = now();
- result = func.apply(thisArg, args);
- if (!timeoutId && !maxTimeoutId) {
- args = thisArg = undefined;
- }
- }
- }
-
- function delayed() {
- var remaining = wait - (now() - stamp);
- if (remaining <= 0 || remaining > wait) {
- complete(trailingCall, maxTimeoutId);
- } else {
- timeoutId = setTimeout(delayed, remaining);
- }
- }
-
- function maxDelayed() {
- complete(trailing, timeoutId);
- }
-
- function debounced() {
- args = arguments;
- stamp = now();
- thisArg = this;
- trailingCall = trailing && (timeoutId || !leading);
-
- if (maxWait === false) {
- var leadingCall = leading && !timeoutId;
- } else {
- if (!maxTimeoutId && !leading) {
- lastCalled = stamp;
- }
- var remaining = maxWait - (stamp - lastCalled),
- isCalled = remaining <= 0 || remaining > maxWait;
-
- if (isCalled) {
- if (maxTimeoutId) {
- maxTimeoutId = clearTimeout(maxTimeoutId);
- }
- lastCalled = stamp;
- result = func.apply(thisArg, args);
- }
- else if (!maxTimeoutId) {
- maxTimeoutId = setTimeout(maxDelayed, remaining);
- }
- }
- if (isCalled && timeoutId) {
- timeoutId = clearTimeout(timeoutId);
- }
- else if (!timeoutId && wait !== maxWait) {
- timeoutId = setTimeout(delayed, wait);
- }
- if (leadingCall) {
- isCalled = true;
- result = func.apply(thisArg, args);
- }
- if (isCalled && !timeoutId && !maxTimeoutId) {
- args = thisArg = undefined;
- }
- return result;
- }
- debounced.cancel = cancel;
- return debounced;
- }
-
- /**
- * Defers invoking the `func` until the current call stack has cleared. Any
- * additional arguments are provided to `func` when it is invoked.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to defer.
- * @param {...*} [args] The arguments to invoke the function with.
- * @returns {number} Returns the timer id.
- * @example
- *
- * _.defer(function(text) {
- * console.log(text);
- * }, 'deferred');
- * // logs 'deferred' after one or more milliseconds
- */
- var defer = restParam(function(func, args) {
- return baseDelay(func, 1, args);
- });
-
- /**
- * Invokes `func` after `wait` milliseconds. Any additional arguments are
- * provided to `func` when it is invoked.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to delay.
- * @param {number} wait The number of milliseconds to delay invocation.
- * @param {...*} [args] The arguments to invoke the function with.
- * @returns {number} Returns the timer id.
- * @example
- *
- * _.delay(function(text) {
- * console.log(text);
- * }, 1000, 'later');
- * // => logs 'later' after one second
- */
- var delay = restParam(function(func, wait, args) {
- return baseDelay(func, wait, args);
- });
-
- /**
- * Creates a function that returns the result of invoking the provided
- * functions with the `this` binding of the created function, where each
- * successive invocation is supplied the return value of the previous.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {...Function} [funcs] Functions to invoke.
- * @returns {Function} Returns the new function.
- * @example
- *
- * function square(n) {
- * return n * n;
- * }
- *
- * var addSquare = _.flow(_.add, square);
- * addSquare(1, 2);
- * // => 9
- */
- var flow = createFlow();
-
- /**
- * This method is like `_.flow` except that it creates a function that
- * invokes the provided functions from right to left.
- *
- * @static
- * @memberOf _
- * @alias backflow, compose
- * @category Function
- * @param {...Function} [funcs] Functions to invoke.
- * @returns {Function} Returns the new function.
- * @example
- *
- * function square(n) {
- * return n * n;
- * }
- *
- * var addSquare = _.flowRight(square, _.add);
- * addSquare(1, 2);
- * // => 9
- */
- var flowRight = createFlow(true);
-
- /**
- * Creates a function that memoizes the result of `func`. If `resolver` is
- * provided it determines the cache key for storing the result based on the
- * arguments provided to the memoized function. By default, the first argument
- * provided to the memoized function is coerced to a string and used as the
- * cache key. The `func` is invoked with the `this` binding of the memoized
- * function.
- *
- * **Note:** The cache is exposed as the `cache` property on the memoized
- * function. Its creation may be customized by replacing the `_.memoize.Cache`
- * constructor with one whose instances implement the [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
- * method interface of `get`, `has`, and `set`.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to have its output memoized.
- * @param {Function} [resolver] The function to resolve the cache key.
- * @returns {Function} Returns the new memoizing function.
- * @example
- *
- * var upperCase = _.memoize(function(string) {
- * return string.toUpperCase();
- * });
- *
- * upperCase('fred');
- * // => 'FRED'
- *
- * // modifying the result cache
- * upperCase.cache.set('fred', 'BARNEY');
- * upperCase('fred');
- * // => 'BARNEY'
- *
- * // replacing `_.memoize.Cache`
- * var object = { 'user': 'fred' };
- * var other = { 'user': 'barney' };
- * var identity = _.memoize(_.identity);
- *
- * identity(object);
- * // => { 'user': 'fred' }
- * identity(other);
- * // => { 'user': 'fred' }
- *
- * _.memoize.Cache = WeakMap;
- * var identity = _.memoize(_.identity);
- *
- * identity(object);
- * // => { 'user': 'fred' }
- * identity(other);
- * // => { 'user': 'barney' }
- */
- function memoize(func, resolver) {
- if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- var memoized = function() {
- var args = arguments,
- key = resolver ? resolver.apply(this, args) : args[0],
- cache = memoized.cache;
-
- if (cache.has(key)) {
- return cache.get(key);
- }
- var result = func.apply(this, args);
- memoized.cache = cache.set(key, result);
- return result;
- };
- memoized.cache = new memoize.Cache;
- return memoized;
- }
-
- /**
- * Creates a function that runs each argument through a corresponding
- * transform function.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to wrap.
- * @param {...(Function|Function[])} [transforms] The functions to transform
- * arguments, specified as individual functions or arrays of functions.
- * @returns {Function} Returns the new function.
- * @example
- *
- * function doubled(n) {
- * return n * 2;
- * }
- *
- * function square(n) {
- * return n * n;
- * }
- *
- * var modded = _.modArgs(function(x, y) {
- * return [x, y];
- * }, square, doubled);
- *
- * modded(1, 2);
- * // => [1, 4]
- *
- * modded(5, 10);
- * // => [25, 20]
- */
- var modArgs = restParam(function(func, transforms) {
- transforms = baseFlatten(transforms);
- if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- var length = transforms.length;
- return restParam(function(args) {
- var index = nativeMin(args.length, length);
- while (index--) {
- args[index] = transforms[index](args[index]);
- }
- return func.apply(this, args);
- });
- });
-
- /**
- * Creates a function that negates the result of the predicate `func`. The
- * `func` predicate is invoked with the `this` binding and arguments of the
- * created function.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} predicate The predicate to negate.
- * @returns {Function} Returns the new function.
- * @example
- *
- * function isEven(n) {
- * return n % 2 == 0;
- * }
- *
- * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
- * // => [1, 3, 5]
- */
- function negate(predicate) {
- if (typeof predicate != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- return function() {
- return !predicate.apply(this, arguments);
- };
- }
-
- /**
- * Creates a function that is restricted to invoking `func` once. Repeat calls
- * to the function return the value of the first call. The `func` is invoked
- * with the `this` binding and arguments of the created function.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to restrict.
- * @returns {Function} Returns the new restricted function.
- * @example
- *
- * var initialize = _.once(createApplication);
- * initialize();
- * initialize();
- * // `initialize` invokes `createApplication` once
- */
- function once(func) {
- return before(2, func);
- }
-
- /**
- * Creates a function that invokes `func` with `partial` arguments prepended
- * to those provided to the new function. This method is like `_.bind` except
- * it does **not** alter the `this` binding.
- *
- * The `_.partial.placeholder` value, which defaults to `_` in monolithic
- * builds, may be used as a placeholder for partially applied arguments.
- *
- * **Note:** This method does not set the "length" property of partially
- * applied functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to partially apply arguments to.
- * @param {...*} [partials] The arguments to be partially applied.
- * @returns {Function} Returns the new partially applied function.
- * @example
- *
- * var greet = function(greeting, name) {
- * return greeting + ' ' + name;
- * };
- *
- * var sayHelloTo = _.partial(greet, 'hello');
- * sayHelloTo('fred');
- * // => 'hello fred'
- *
- * // using placeholders
- * var greetFred = _.partial(greet, _, 'fred');
- * greetFred('hi');
- * // => 'hi fred'
- */
- var partial = createPartial(PARTIAL_FLAG);
-
- /**
- * This method is like `_.partial` except that partially applied arguments
- * are appended to those provided to the new function.
- *
- * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
- * builds, may be used as a placeholder for partially applied arguments.
- *
- * **Note:** This method does not set the "length" property of partially
- * applied functions.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to partially apply arguments to.
- * @param {...*} [partials] The arguments to be partially applied.
- * @returns {Function} Returns the new partially applied function.
- * @example
- *
- * var greet = function(greeting, name) {
- * return greeting + ' ' + name;
- * };
- *
- * var greetFred = _.partialRight(greet, 'fred');
- * greetFred('hi');
- * // => 'hi fred'
- *
- * // using placeholders
- * var sayHelloTo = _.partialRight(greet, 'hello', _);
- * sayHelloTo('fred');
- * // => 'hello fred'
- */
- var partialRight = createPartial(PARTIAL_RIGHT_FLAG);
-
- /**
- * Creates a function that invokes `func` with arguments arranged according
- * to the specified indexes where the argument value at the first index is
- * provided as the first argument, the argument value at the second index is
- * provided as the second argument, and so on.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to rearrange arguments for.
- * @param {...(number|number[])} indexes The arranged argument indexes,
- * specified as individual indexes or arrays of indexes.
- * @returns {Function} Returns the new function.
- * @example
- *
- * var rearged = _.rearg(function(a, b, c) {
- * return [a, b, c];
- * }, 2, 0, 1);
- *
- * rearged('b', 'c', 'a')
- * // => ['a', 'b', 'c']
- *
- * var map = _.rearg(_.map, [1, 0]);
- * map(function(n) {
- * return n * 3;
- * }, [1, 2, 3]);
- * // => [3, 6, 9]
- */
- var rearg = restParam(function(func, indexes) {
- return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes));
- });
-
- /**
- * Creates a function that invokes `func` with the `this` binding of the
- * created function and arguments from `start` and beyond provided as an array.
- *
- * **Note:** This method is based on the [rest parameter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/rest_parameters).
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to apply a rest parameter to.
- * @param {number} [start=func.length-1] The start position of the rest parameter.
- * @returns {Function} Returns the new function.
- * @example
- *
- * var say = _.restParam(function(what, names) {
- * return what + ' ' + _.initial(names).join(', ') +
- * (_.size(names) > 1 ? ', & ' : '') + _.last(names);
- * });
- *
- * say('hello', 'fred', 'barney', 'pebbles');
- * // => 'hello fred, barney, & pebbles'
- */
- function restParam(func, start) {
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- start = nativeMax(start === undefined ? (func.length - 1) : (+start || 0), 0);
- return function() {
- var args = arguments,
- index = -1,
- length = nativeMax(args.length - start, 0),
- rest = Array(length);
-
- while (++index < length) {
- rest[index] = args[start + index];
- }
- switch (start) {
- case 0: return func.call(this, rest);
- case 1: return func.call(this, args[0], rest);
- case 2: return func.call(this, args[0], args[1], rest);
- }
- var otherArgs = Array(start + 1);
- index = -1;
- while (++index < start) {
- otherArgs[index] = args[index];
- }
- otherArgs[start] = rest;
- return func.apply(this, otherArgs);
- };
- }
-
- /**
- * Creates a function that invokes `func` with the `this` binding of the created
- * function and an array of arguments much like [`Function#apply`](https://es5.github.io/#x15.3.4.3).
- *
- * **Note:** This method is based on the [spread operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator).
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to spread arguments over.
- * @returns {Function} Returns the new function.
- * @example
- *
- * var say = _.spread(function(who, what) {
- * return who + ' says ' + what;
- * });
- *
- * say(['fred', 'hello']);
- * // => 'fred says hello'
- *
- * // with a Promise
- * var numbers = Promise.all([
- * Promise.resolve(40),
- * Promise.resolve(36)
- * ]);
- *
- * numbers.then(_.spread(function(x, y) {
- * return x + y;
- * }));
- * // => a Promise of 76
- */
- function spread(func) {
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- return function(array) {
- return func.apply(this, array);
- };
- }
-
- /**
- * Creates a throttled function that only invokes `func` at most once per
- * every `wait` milliseconds. The throttled function comes with a `cancel`
- * method to cancel delayed invocations. Provide an options object to indicate
- * that `func` should be invoked on the leading and/or trailing edge of the
- * `wait` timeout. Subsequent calls to the throttled function return the
- * result of the last `func` call.
- *
- * **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
- * on the trailing edge of the timeout only if the the throttled function is
- * invoked more than once during the `wait` timeout.
- *
- * See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
- * for details over the differences between `_.throttle` and `_.debounce`.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {Function} func The function to throttle.
- * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
- * @param {Object} [options] The options object.
- * @param {boolean} [options.leading=true] Specify invoking on the leading
- * edge of the timeout.
- * @param {boolean} [options.trailing=true] Specify invoking on the trailing
- * edge of the timeout.
- * @returns {Function} Returns the new throttled function.
- * @example
- *
- * // avoid excessively updating the position while scrolling
- * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
- *
- * // invoke `renewToken` when the click event is fired, but not more than once every 5 minutes
- * jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
- * 'trailing': false
- * }));
- *
- * // cancel a trailing throttled call
- * jQuery(window).on('popstate', throttled.cancel);
- */
- function throttle(func, wait, options) {
- var leading = true,
- trailing = true;
-
- if (typeof func != 'function') {
- throw new TypeError(FUNC_ERROR_TEXT);
- }
- if (options === false) {
- leading = false;
- } else if (isObject(options)) {
- leading = 'leading' in options ? !!options.leading : leading;
- trailing = 'trailing' in options ? !!options.trailing : trailing;
- }
- return debounce(func, wait, { 'leading': leading, 'maxWait': +wait, 'trailing': trailing });
- }
-
- /**
- * Creates a function that provides `value` to the wrapper function as its
- * first argument. Any additional arguments provided to the function are
- * appended to those provided to the wrapper function. The wrapper is invoked
- * with the `this` binding of the created function.
- *
- * @static
- * @memberOf _
- * @category Function
- * @param {*} value The value to wrap.
- * @param {Function} wrapper The wrapper function.
- * @returns {Function} Returns the new function.
- * @example
- *
- * var p = _.wrap(_.escape, function(func, text) {
- * return '' + func(text) + '
';
- * });
- *
- * p('fred, barney, & pebbles');
- * // => 'fred, barney, & pebbles
'
- */
- function wrap(value, wrapper) {
- wrapper = wrapper == null ? identity : wrapper;
- return createWrapper(wrapper, PARTIAL_FLAG, undefined, [value], []);
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
- * otherwise they are assigned by reference. If `customizer` is provided it is
- * invoked to produce the cloned values. If `customizer` returns `undefined`
- * cloning is handled by the method instead. The `customizer` is bound to
- * `thisArg` and invoked with two argument; (value [, index|key, object]).
- *
- * **Note:** This method is loosely based on the
- * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
- * The enumerable properties of `arguments` objects and objects created by
- * constructors other than `Object` are cloned to plain `Object` objects. An
- * empty object is returned for uncloneable values such as functions, DOM nodes,
- * Maps, Sets, and WeakMaps.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @param {Function} [customizer] The function to customize cloning values.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {*} Returns the cloned value.
- * @example
- *
- * var users = [
- * { 'user': 'barney' },
- * { 'user': 'fred' }
- * ];
- *
- * var shallow = _.clone(users);
- * shallow[0] === users[0];
- * // => true
- *
- * var deep = _.clone(users, true);
- * deep[0] === users[0];
- * // => false
- *
- * // using a customizer callback
- * var el = _.clone(document.body, function(value) {
- * if (_.isElement(value)) {
- * return value.cloneNode(false);
- * }
- * });
- *
- * el === document.body
- * // => false
- * el.nodeName
- * // => BODY
- * el.childNodes.length;
- * // => 0
- */
- function clone(value, isDeep, customizer, thisArg) {
- if (isDeep && typeof isDeep != 'boolean' && isIterateeCall(value, isDeep, customizer)) {
- isDeep = false;
- }
- else if (typeof isDeep == 'function') {
- thisArg = customizer;
- customizer = isDeep;
- isDeep = false;
- }
- return typeof customizer == 'function'
- ? baseClone(value, isDeep, bindCallback(customizer, thisArg, 1))
- : baseClone(value, isDeep);
- }
-
- /**
- * Creates a deep clone of `value`. If `customizer` is provided it is invoked
- * to produce the cloned values. If `customizer` returns `undefined` cloning
- * is handled by the method instead. The `customizer` is bound to `thisArg`
- * and invoked with two argument; (value [, index|key, object]).
- *
- * **Note:** This method is loosely based on the
- * [structured clone algorithm](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm).
- * The enumerable properties of `arguments` objects and objects created by
- * constructors other than `Object` are cloned to plain `Object` objects. An
- * empty object is returned for uncloneable values such as functions, DOM nodes,
- * Maps, Sets, and WeakMaps.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to deep clone.
- * @param {Function} [customizer] The function to customize cloning values.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {*} Returns the deep cloned value.
- * @example
- *
- * var users = [
- * { 'user': 'barney' },
- * { 'user': 'fred' }
- * ];
- *
- * var deep = _.cloneDeep(users);
- * deep[0] === users[0];
- * // => false
- *
- * // using a customizer callback
- * var el = _.cloneDeep(document.body, function(value) {
- * if (_.isElement(value)) {
- * return value.cloneNode(true);
- * }
- * });
- *
- * el === document.body
- * // => false
- * el.nodeName
- * // => BODY
- * el.childNodes.length;
- * // => 20
- */
- function cloneDeep(value, customizer, thisArg) {
- return typeof customizer == 'function'
- ? baseClone(value, true, bindCallback(customizer, thisArg, 1))
- : baseClone(value, true);
- }
-
- /**
- * Checks if `value` is greater than `other`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if `value` is greater than `other`, else `false`.
- * @example
- *
- * _.gt(3, 1);
- * // => true
- *
- * _.gt(3, 3);
- * // => false
- *
- * _.gt(1, 3);
- * // => false
- */
- function gt(value, other) {
- return value > other;
- }
-
- /**
- * Checks if `value` is greater than or equal to `other`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if `value` is greater than or equal to `other`, else `false`.
- * @example
- *
- * _.gte(3, 1);
- * // => true
- *
- * _.gte(3, 3);
- * // => true
- *
- * _.gte(1, 3);
- * // => false
- */
- function gte(value, other) {
- return value >= other;
- }
-
- /**
- * Checks if `value` is classified as an `arguments` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
- function isArguments(value) {
- return isObjectLike(value) && isArrayLike(value) &&
- hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
- }
-
- /**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(function() { return arguments; }());
- * // => false
- */
- var isArray = nativeIsArray || function(value) {
- return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
- };
-
- /**
- * Checks if `value` is classified as a boolean primitive or object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isBoolean(false);
- * // => true
- *
- * _.isBoolean(null);
- * // => false
- */
- function isBoolean(value) {
- return value === true || value === false || (isObjectLike(value) && objToString.call(value) == boolTag);
- }
-
- /**
- * Checks if `value` is classified as a `Date` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isDate(new Date);
- * // => true
- *
- * _.isDate('Mon April 23 2012');
- * // => false
- */
- function isDate(value) {
- return isObjectLike(value) && objToString.call(value) == dateTag;
- }
-
- /**
- * Checks if `value` is a DOM element.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
- * @example
- *
- * _.isElement(document.body);
- * // => true
- *
- * _.isElement('');
- * // => false
- */
- function isElement(value) {
- return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
- }
-
- /**
- * Checks if `value` is empty. A value is considered empty unless it is an
- * `arguments` object, array, string, or jQuery-like collection with a length
- * greater than `0` or an object with own enumerable properties.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {Array|Object|string} value The value to inspect.
- * @returns {boolean} Returns `true` if `value` is empty, else `false`.
- * @example
- *
- * _.isEmpty(null);
- * // => true
- *
- * _.isEmpty(true);
- * // => true
- *
- * _.isEmpty(1);
- * // => true
- *
- * _.isEmpty([1, 2, 3]);
- * // => false
- *
- * _.isEmpty({ 'a': 1 });
- * // => false
- */
- function isEmpty(value) {
- if (value == null) {
- return true;
- }
- if (isArrayLike(value) && (isArray(value) || isString(value) || isArguments(value) ||
- (isObjectLike(value) && isFunction(value.splice)))) {
- return !value.length;
- }
- return !keys(value).length;
- }
-
- /**
- * Performs a deep comparison between two values to determine if they are
- * equivalent. If `customizer` is provided it is invoked to compare values.
- * If `customizer` returns `undefined` comparisons are handled by the method
- * instead. The `customizer` is bound to `thisArg` and invoked with three
- * arguments: (value, other [, index|key]).
- *
- * **Note:** This method supports comparing arrays, booleans, `Date` objects,
- * numbers, `Object` objects, regexes, and strings. Objects are compared by
- * their own, not inherited, enumerable properties. Functions and DOM nodes
- * are **not** supported. Provide a customizer function to extend support
- * for comparing other values.
- *
- * @static
- * @memberOf _
- * @alias eq
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @param {Function} [customizer] The function to customize value comparisons.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'user': 'fred' };
- * var other = { 'user': 'fred' };
- *
- * object == other;
- * // => false
- *
- * _.isEqual(object, other);
- * // => true
- *
- * // using a customizer callback
- * var array = ['hello', 'goodbye'];
- * var other = ['hi', 'goodbye'];
- *
- * _.isEqual(array, other, function(value, other) {
- * if (_.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/)) {
- * return true;
- * }
- * });
- * // => true
- */
- function isEqual(value, other, customizer, thisArg) {
- customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
- var result = customizer ? customizer(value, other) : undefined;
- return result === undefined ? baseIsEqual(value, other, customizer) : !!result;
- }
-
- /**
- * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
- * `SyntaxError`, `TypeError`, or `URIError` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
- * @example
- *
- * _.isError(new Error);
- * // => true
- *
- * _.isError(Error);
- * // => false
- */
- function isError(value) {
- return isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag;
- }
-
- /**
- * Checks if `value` is a finite primitive number.
- *
- * **Note:** This method is based on [`Number.isFinite`](http://ecma-international.org/ecma-262/6.0/#sec-number.isfinite).
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
- * @example
- *
- * _.isFinite(10);
- * // => true
- *
- * _.isFinite('10');
- * // => false
- *
- * _.isFinite(true);
- * // => false
- *
- * _.isFinite(Object(10));
- * // => false
- *
- * _.isFinite(Infinity);
- * // => false
- */
- function isFinite(value) {
- return typeof value == 'number' && nativeIsFinite(value);
- }
-
- /**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
- function isFunction(value) {
- // The use of `Object#toString` avoids issues with the `typeof` operator
- // in older versions of Chrome and Safari which return 'function' for regexes
- // and Safari 8 equivalents which return 'object' for typed array constructors.
- return isObject(value) && objToString.call(value) == funcTag;
- }
-
- /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(1);
- * // => false
- */
- function isObject(value) {
- // Avoid a V8 JIT bug in Chrome 19-20.
- // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
- var type = typeof value;
- return !!value && (type == 'object' || type == 'function');
- }
-
- /**
- * Performs a deep comparison between `object` and `source` to determine if
- * `object` contains equivalent property values. If `customizer` is provided
- * it is invoked to compare values. If `customizer` returns `undefined`
- * comparisons are handled by the method instead. The `customizer` is bound
- * to `thisArg` and invoked with three arguments: (value, other, index|key).
- *
- * **Note:** This method supports comparing properties of arrays, booleans,
- * `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
- * and DOM nodes are **not** supported. Provide a customizer function to extend
- * support for comparing other values.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {Object} object The object to inspect.
- * @param {Object} source The object of property values to match.
- * @param {Function} [customizer] The function to customize value comparisons.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {boolean} Returns `true` if `object` is a match, else `false`.
- * @example
- *
- * var object = { 'user': 'fred', 'age': 40 };
- *
- * _.isMatch(object, { 'age': 40 });
- * // => true
- *
- * _.isMatch(object, { 'age': 36 });
- * // => false
- *
- * // using a customizer callback
- * var object = { 'greeting': 'hello' };
- * var source = { 'greeting': 'hi' };
- *
- * _.isMatch(object, source, function(value, other) {
- * return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
- * });
- * // => true
- */
- function isMatch(object, source, customizer, thisArg) {
- customizer = typeof customizer == 'function' ? bindCallback(customizer, thisArg, 3) : undefined;
- return baseIsMatch(object, getMatchData(source), customizer);
- }
-
- /**
- * Checks if `value` is `NaN`.
- *
- * **Note:** This method is not the same as [`isNaN`](https://es5.github.io/#x15.1.2.4)
- * which returns `true` for `undefined` and other non-numeric values.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
- * @example
- *
- * _.isNaN(NaN);
- * // => true
- *
- * _.isNaN(new Number(NaN));
- * // => true
- *
- * isNaN(undefined);
- * // => true
- *
- * _.isNaN(undefined);
- * // => false
- */
- function isNaN(value) {
- // An `NaN` primitive is the only value that is not equal to itself.
- // Perform the `toStringTag` check first to avoid errors with some host objects in IE.
- return isNumber(value) && value != +value;
- }
-
- /**
- * Checks if `value` is a native function.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
- * @example
- *
- * _.isNative(Array.prototype.push);
- * // => true
- *
- * _.isNative(_);
- * // => false
- */
- function isNative(value) {
- if (value == null) {
- return false;
- }
- if (isFunction(value)) {
- return reIsNative.test(fnToString.call(value));
- }
- return isObjectLike(value) && reIsHostCtor.test(value);
- }
-
- /**
- * Checks if `value` is `null`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
- * @example
- *
- * _.isNull(null);
- * // => true
- *
- * _.isNull(void 0);
- * // => false
- */
- function isNull(value) {
- return value === null;
- }
-
- /**
- * Checks if `value` is classified as a `Number` primitive or object.
- *
- * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified
- * as numbers, use the `_.isFinite` method.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isNumber(8.4);
- * // => true
- *
- * _.isNumber(NaN);
- * // => true
- *
- * _.isNumber('8.4');
- * // => false
- */
- function isNumber(value) {
- return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag);
- }
-
- /**
- * Checks if `value` is a plain object, that is, an object created by the
- * `Object` constructor or one with a `[[Prototype]]` of `null`.
- *
- * **Note:** This method assumes objects created by the `Object` constructor
- * have no inherited enumerable properties.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * }
- *
- * _.isPlainObject(new Foo);
- * // => false
- *
- * _.isPlainObject([1, 2, 3]);
- * // => false
- *
- * _.isPlainObject({ 'x': 0, 'y': 0 });
- * // => true
- *
- * _.isPlainObject(Object.create(null));
- * // => true
- */
- function isPlainObject(value) {
- var Ctor;
-
- // Exit early for non `Object` objects.
- if (!(isObjectLike(value) && objToString.call(value) == objectTag && !isArguments(value)) ||
- (!hasOwnProperty.call(value, 'constructor') && (Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
- return false;
- }
- // IE < 9 iterates inherited properties before own properties. If the first
- // iterated property is an object's own property then there are no inherited
- // enumerable properties.
- var result;
- // In most environments an object's own properties are iterated before
- // its inherited properties. If the last iterated property is an object's
- // own property then there are no inherited enumerable properties.
- baseForIn(value, function(subValue, key) {
- result = key;
- });
- return result === undefined || hasOwnProperty.call(value, result);
- }
-
- /**
- * Checks if `value` is classified as a `RegExp` object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isRegExp(/abc/);
- * // => true
- *
- * _.isRegExp('/abc/');
- * // => false
- */
- function isRegExp(value) {
- return isObject(value) && objToString.call(value) == regexpTag;
- }
-
- /**
- * Checks if `value` is classified as a `String` primitive or object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isString('abc');
- * // => true
- *
- * _.isString(1);
- * // => false
- */
- function isString(value) {
- return typeof value == 'string' || (isObjectLike(value) && objToString.call(value) == stringTag);
- }
-
- /**
- * Checks if `value` is classified as a typed array.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
- * @example
- *
- * _.isTypedArray(new Uint8Array);
- * // => true
- *
- * _.isTypedArray([]);
- * // => false
- */
- function isTypedArray(value) {
- return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
- }
-
- /**
- * Checks if `value` is `undefined`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
- * @example
- *
- * _.isUndefined(void 0);
- * // => true
- *
- * _.isUndefined(null);
- * // => false
- */
- function isUndefined(value) {
- return value === undefined;
- }
-
- /**
- * Checks if `value` is less than `other`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if `value` is less than `other`, else `false`.
- * @example
- *
- * _.lt(1, 3);
- * // => true
- *
- * _.lt(3, 3);
- * // => false
- *
- * _.lt(3, 1);
- * // => false
- */
- function lt(value, other) {
- return value < other;
- }
-
- /**
- * Checks if `value` is less than or equal to `other`.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if `value` is less than or equal to `other`, else `false`.
- * @example
- *
- * _.lte(1, 3);
- * // => true
- *
- * _.lte(3, 3);
- * // => true
- *
- * _.lte(3, 1);
- * // => false
- */
- function lte(value, other) {
- return value <= other;
- }
-
- /**
- * Converts `value` to an array.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to convert.
- * @returns {Array} Returns the converted array.
- * @example
- *
- * (function() {
- * return _.toArray(arguments).slice(1);
- * }(1, 2, 3));
- * // => [2, 3]
- */
- function toArray(value) {
- var length = value ? getLength(value) : 0;
- if (!isLength(length)) {
- return values(value);
- }
- if (!length) {
- return [];
- }
- return arrayCopy(value);
- }
-
- /**
- * Converts `value` to a plain object flattening inherited enumerable
- * properties of `value` to own properties of the plain object.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to convert.
- * @returns {Object} Returns the converted plain object.
- * @example
- *
- * function Foo() {
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.assign({ 'a': 1 }, new Foo);
- * // => { 'a': 1, 'b': 2 }
- *
- * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
- * // => { 'a': 1, 'b': 2, 'c': 3 }
- */
- function toPlainObject(value) {
- return baseCopy(value, keysIn(value));
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Recursively merges own enumerable properties of the source object(s), that
- * don't resolve to `undefined` into the destination object. Subsequent sources
- * overwrite property assignments of previous sources. If `customizer` is
- * provided it is invoked to produce the merged values of the destination and
- * source properties. If `customizer` returns `undefined` merging is handled
- * by the method instead. The `customizer` is bound to `thisArg` and invoked
- * with five arguments: (objectValue, sourceValue, key, object, source).
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The destination object.
- * @param {...Object} [sources] The source objects.
- * @param {Function} [customizer] The function to customize assigned values.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * var users = {
- * 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
- * };
- *
- * var ages = {
- * 'data': [{ 'age': 36 }, { 'age': 40 }]
- * };
- *
- * _.merge(users, ages);
- * // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
- *
- * // using a customizer callback
- * var object = {
- * 'fruits': ['apple'],
- * 'vegetables': ['beet']
- * };
- *
- * var other = {
- * 'fruits': ['banana'],
- * 'vegetables': ['carrot']
- * };
- *
- * _.merge(object, other, function(a, b) {
- * if (_.isArray(a)) {
- * return a.concat(b);
- * }
- * });
- * // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
- */
- var merge = createAssigner(baseMerge);
-
- /**
- * Assigns own enumerable properties of source object(s) to the destination
- * object. Subsequent sources overwrite property assignments of previous sources.
- * If `customizer` is provided it is invoked to produce the assigned values.
- * The `customizer` is bound to `thisArg` and invoked with five arguments:
- * (objectValue, sourceValue, key, object, source).
- *
- * **Note:** This method mutates `object` and is based on
- * [`Object.assign`](http://ecma-international.org/ecma-262/6.0/#sec-object.assign).
- *
- * @static
- * @memberOf _
- * @alias extend
- * @category Object
- * @param {Object} object The destination object.
- * @param {...Object} [sources] The source objects.
- * @param {Function} [customizer] The function to customize assigned values.
- * @param {*} [thisArg] The `this` binding of `customizer`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
- * // => { 'user': 'fred', 'age': 40 }
- *
- * // using a customizer callback
- * var defaults = _.partialRight(_.assign, function(value, other) {
- * return _.isUndefined(value) ? other : value;
- * });
- *
- * defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
- * // => { 'user': 'barney', 'age': 36 }
- */
- var assign = createAssigner(function(object, source, customizer) {
- return customizer
- ? assignWith(object, source, customizer)
- : baseAssign(object, source);
- });
-
- /**
- * Creates an object that inherits from the given `prototype` object. If a
- * `properties` object is provided its own enumerable properties are assigned
- * to the created object.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} prototype The object to inherit from.
- * @param {Object} [properties] The properties to assign to the object.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Object} Returns the new object.
- * @example
- *
- * function Shape() {
- * this.x = 0;
- * this.y = 0;
- * }
- *
- * function Circle() {
- * Shape.call(this);
- * }
- *
- * Circle.prototype = _.create(Shape.prototype, {
- * 'constructor': Circle
- * });
- *
- * var circle = new Circle;
- * circle instanceof Circle;
- * // => true
- *
- * circle instanceof Shape;
- * // => true
- */
- function create(prototype, properties, guard) {
- var result = baseCreate(prototype);
- if (guard && isIterateeCall(prototype, properties, guard)) {
- properties = undefined;
- }
- return properties ? baseAssign(result, properties) : result;
- }
-
- /**
- * Assigns own enumerable properties of source object(s) to the destination
- * object for all destination properties that resolve to `undefined`. Once a
- * property is set, additional values of the same property are ignored.
- *
- * **Note:** This method mutates `object`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The destination object.
- * @param {...Object} [sources] The source objects.
- * @returns {Object} Returns `object`.
- * @example
- *
- * _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
- * // => { 'user': 'barney', 'age': 36 }
- */
- var defaults = createDefaults(assign, assignDefaults);
-
- /**
- * This method is like `_.defaults` except that it recursively assigns
- * default properties.
- *
- * **Note:** This method mutates `object`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The destination object.
- * @param {...Object} [sources] The source objects.
- * @returns {Object} Returns `object`.
- * @example
- *
- * _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
- * // => { 'user': { 'name': 'barney', 'age': 36 } }
- *
- */
- var defaultsDeep = createDefaults(merge, mergeDefaults);
-
- /**
- * This method is like `_.find` except that it returns the key of the first
- * element `predicate` returns truthy for instead of the element itself.
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
- * @example
- *
- * var users = {
- * 'barney': { 'age': 36, 'active': true },
- * 'fred': { 'age': 40, 'active': false },
- * 'pebbles': { 'age': 1, 'active': true }
- * };
- *
- * _.findKey(users, function(chr) {
- * return chr.age < 40;
- * });
- * // => 'barney' (iteration order is not guaranteed)
- *
- * // using the `_.matches` callback shorthand
- * _.findKey(users, { 'age': 1, 'active': true });
- * // => 'pebbles'
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.findKey(users, 'active', false);
- * // => 'fred'
- *
- * // using the `_.property` callback shorthand
- * _.findKey(users, 'active');
- * // => 'barney'
- */
- var findKey = createFindKey(baseForOwn);
-
- /**
- * This method is like `_.findKey` except that it iterates over elements of
- * a collection in the opposite order.
- *
- * If a property name is provided for `predicate` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `predicate` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to search.
- * @param {Function|Object|string} [predicate=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {string|undefined} Returns the key of the matched element, else `undefined`.
- * @example
- *
- * var users = {
- * 'barney': { 'age': 36, 'active': true },
- * 'fred': { 'age': 40, 'active': false },
- * 'pebbles': { 'age': 1, 'active': true }
- * };
- *
- * _.findLastKey(users, function(chr) {
- * return chr.age < 40;
- * });
- * // => returns `pebbles` assuming `_.findKey` returns `barney`
- *
- * // using the `_.matches` callback shorthand
- * _.findLastKey(users, { 'age': 36, 'active': true });
- * // => 'barney'
- *
- * // using the `_.matchesProperty` callback shorthand
- * _.findLastKey(users, 'active', false);
- * // => 'fred'
- *
- * // using the `_.property` callback shorthand
- * _.findLastKey(users, 'active');
- * // => 'pebbles'
- */
- var findLastKey = createFindKey(baseForOwnRight);
-
- /**
- * Iterates over own and inherited enumerable properties of an object invoking
- * `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
- * with three arguments: (value, key, object). Iteratee functions may exit
- * iteration early by explicitly returning `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.forIn(new Foo, function(value, key) {
- * console.log(key);
- * });
- * // => logs 'a', 'b', and 'c' (iteration order is not guaranteed)
- */
- var forIn = createForIn(baseFor);
-
- /**
- * This method is like `_.forIn` except that it iterates over properties of
- * `object` in the opposite order.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.forInRight(new Foo, function(value, key) {
- * console.log(key);
- * });
- * // => logs 'c', 'b', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
- */
- var forInRight = createForIn(baseForRight);
-
- /**
- * Iterates over own enumerable properties of an object invoking `iteratee`
- * for each property. The `iteratee` is bound to `thisArg` and invoked with
- * three arguments: (value, key, object). Iteratee functions may exit iteration
- * early by explicitly returning `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.forOwn(new Foo, function(value, key) {
- * console.log(key);
- * });
- * // => logs 'a' and 'b' (iteration order is not guaranteed)
- */
- var forOwn = createForOwn(baseForOwn);
-
- /**
- * This method is like `_.forOwn` except that it iterates over properties of
- * `object` in the opposite order.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns `object`.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.forOwnRight(new Foo, function(value, key) {
- * console.log(key);
- * });
- * // => logs 'b' and 'a' assuming `_.forOwn` logs 'a' and 'b'
- */
- var forOwnRight = createForOwn(baseForOwnRight);
-
- /**
- * Creates an array of function property names from all enumerable properties,
- * own and inherited, of `object`.
- *
- * @static
- * @memberOf _
- * @alias methods
- * @category Object
- * @param {Object} object The object to inspect.
- * @returns {Array} Returns the new array of property names.
- * @example
- *
- * _.functions(_);
- * // => ['after', 'ary', 'assign', ...]
- */
- function functions(object) {
- return baseFunctions(object, keysIn(object));
- }
-
- /**
- * Gets the property value at `path` of `object`. If the resolved value is
- * `undefined` the `defaultValue` is used in its place.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @param {Array|string} path The path of the property to get.
- * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
- * @returns {*} Returns the resolved value.
- * @example
- *
- * var object = { 'a': [{ 'b': { 'c': 3 } }] };
- *
- * _.get(object, 'a[0].b.c');
- * // => 3
- *
- * _.get(object, ['a', '0', 'b', 'c']);
- * // => 3
- *
- * _.get(object, 'a.b.c', 'default');
- * // => 'default'
- */
- function get(object, path, defaultValue) {
- var result = object == null ? undefined : baseGet(object, toPath(path), path + '');
- return result === undefined ? defaultValue : result;
- }
-
- /**
- * Checks if `path` is a direct property.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @param {Array|string} path The path to check.
- * @returns {boolean} Returns `true` if `path` is a direct property, else `false`.
- * @example
- *
- * var object = { 'a': { 'b': { 'c': 3 } } };
- *
- * _.has(object, 'a');
- * // => true
- *
- * _.has(object, 'a.b.c');
- * // => true
- *
- * _.has(object, ['a', 'b', 'c']);
- * // => true
- */
- function has(object, path) {
- if (object == null) {
- return false;
- }
- var result = hasOwnProperty.call(object, path);
- if (!result && !isKey(path)) {
- path = toPath(path);
- object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
- if (object == null) {
- return false;
- }
- path = last(path);
- result = hasOwnProperty.call(object, path);
- }
- return result || (isLength(object.length) && isIndex(path, object.length) &&
- (isArray(object) || isArguments(object)));
- }
-
- /**
- * Creates an object composed of the inverted keys and values of `object`.
- * If `object` contains duplicate values, subsequent values overwrite property
- * assignments of previous values unless `multiValue` is `true`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to invert.
- * @param {boolean} [multiValue] Allow multiple values per key.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {Object} Returns the new inverted object.
- * @example
- *
- * var object = { 'a': 1, 'b': 2, 'c': 1 };
- *
- * _.invert(object);
- * // => { '1': 'c', '2': 'b' }
- *
- * // with `multiValue`
- * _.invert(object, true);
- * // => { '1': ['a', 'c'], '2': ['b'] }
- */
- function invert(object, multiValue, guard) {
- if (guard && isIterateeCall(object, multiValue, guard)) {
- multiValue = undefined;
- }
- var index = -1,
- props = keys(object),
- length = props.length,
- result = {};
-
- while (++index < length) {
- var key = props[index],
- value = object[key];
-
- if (multiValue) {
- if (hasOwnProperty.call(result, value)) {
- result[value].push(key);
- } else {
- result[value] = [key];
- }
- }
- else {
- result[value] = key;
- }
- }
- return result;
- }
-
- /**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
- var keys = !nativeKeys ? shimKeys : function(object) {
- var Ctor = object == null ? undefined : object.constructor;
- if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
- (typeof object != 'function' && isArrayLike(object))) {
- return shimKeys(object);
- }
- return isObject(object) ? nativeKeys(object) : [];
- };
-
- /**
- * Creates an array of the own and inherited enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keysIn(new Foo);
- * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
- */
- function keysIn(object) {
- if (object == null) {
- return [];
- }
- if (!isObject(object)) {
- object = Object(object);
- }
- var length = object.length;
- length = (length && isLength(length) &&
- (isArray(object) || isArguments(object)) && length) || 0;
-
- var Ctor = object.constructor,
- index = -1,
- isProto = typeof Ctor == 'function' && Ctor.prototype === object,
- result = Array(length),
- skipIndexes = length > 0;
-
- while (++index < length) {
- result[index] = (index + '');
- }
- for (var key in object) {
- if (!(skipIndexes && isIndex(key, length)) &&
- !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
- result.push(key);
- }
- }
- return result;
- }
-
- /**
- * The opposite of `_.mapValues`; this method creates an object with the
- * same values as `object` and keys generated by running each own enumerable
- * property of `object` through `iteratee`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns the new mapped object.
- * @example
- *
- * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
- * return key + value;
- * });
- * // => { 'a1': 1, 'b2': 2 }
- */
- var mapKeys = createObjectMapper(true);
-
- /**
- * Creates an object with the same keys as `object` and values generated by
- * running each own enumerable property of `object` through `iteratee`. The
- * iteratee function is bound to `thisArg` and invoked with three arguments:
- * (value, key, object).
- *
- * If a property name is provided for `iteratee` the created `_.property`
- * style callback returns the property value of the given element.
- *
- * If a value is also provided for `thisArg` the created `_.matchesProperty`
- * style callback returns `true` for elements that have a matching property
- * value, else `false`.
- *
- * If an object is provided for `iteratee` the created `_.matches` style
- * callback returns `true` for elements that have the properties of the given
- * object, else `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to iterate over.
- * @param {Function|Object|string} [iteratee=_.identity] The function invoked
- * per iteration.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {Object} Returns the new mapped object.
- * @example
- *
- * _.mapValues({ 'a': 1, 'b': 2 }, function(n) {
- * return n * 3;
- * });
- * // => { 'a': 3, 'b': 6 }
- *
- * var users = {
- * 'fred': { 'user': 'fred', 'age': 40 },
- * 'pebbles': { 'user': 'pebbles', 'age': 1 }
- * };
- *
- * // using the `_.property` callback shorthand
- * _.mapValues(users, 'age');
- * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
- */
- var mapValues = createObjectMapper();
-
- /**
- * The opposite of `_.pick`; this method creates an object composed of the
- * own and inherited enumerable properties of `object` that are not omitted.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The source object.
- * @param {Function|...(string|string[])} [predicate] The function invoked per
- * iteration or property names to omit, specified as individual property
- * names or arrays of property names.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Object} Returns the new object.
- * @example
- *
- * var object = { 'user': 'fred', 'age': 40 };
- *
- * _.omit(object, 'age');
- * // => { 'user': 'fred' }
- *
- * _.omit(object, _.isNumber);
- * // => { 'user': 'fred' }
- */
- var omit = restParam(function(object, props) {
- if (object == null) {
- return {};
- }
- if (typeof props[0] != 'function') {
- var props = arrayMap(baseFlatten(props), String);
- return pickByArray(object, baseDifference(keysIn(object), props));
- }
- var predicate = bindCallback(props[0], props[1], 3);
- return pickByCallback(object, function(value, key, object) {
- return !predicate(value, key, object);
- });
- });
-
- /**
- * Creates a two dimensional array of the key-value pairs for `object`,
- * e.g. `[[key1, value1], [key2, value2]]`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the new array of key-value pairs.
- * @example
- *
- * _.pairs({ 'barney': 36, 'fred': 40 });
- * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
- */
- function pairs(object) {
- object = toObject(object);
-
- var index = -1,
- props = keys(object),
- length = props.length,
- result = Array(length);
-
- while (++index < length) {
- var key = props[index];
- result[index] = [key, object[key]];
- }
- return result;
- }
-
- /**
- * Creates an object composed of the picked `object` properties. Property
- * names may be specified as individual arguments or as arrays of property
- * names. If `predicate` is provided it is invoked for each property of `object`
- * picking the properties `predicate` returns truthy for. The predicate is
- * bound to `thisArg` and invoked with three arguments: (value, key, object).
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The source object.
- * @param {Function|...(string|string[])} [predicate] The function invoked per
- * iteration or property names to pick, specified as individual property
- * names or arrays of property names.
- * @param {*} [thisArg] The `this` binding of `predicate`.
- * @returns {Object} Returns the new object.
- * @example
- *
- * var object = { 'user': 'fred', 'age': 40 };
- *
- * _.pick(object, 'user');
- * // => { 'user': 'fred' }
- *
- * _.pick(object, _.isString);
- * // => { 'user': 'fred' }
- */
- var pick = restParam(function(object, props) {
- if (object == null) {
- return {};
- }
- return typeof props[0] == 'function'
- ? pickByCallback(object, bindCallback(props[0], props[1], 3))
- : pickByArray(object, baseFlatten(props));
- });
-
- /**
- * This method is like `_.get` except that if the resolved value is a function
- * it is invoked with the `this` binding of its parent object and its result
- * is returned.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @param {Array|string} path The path of the property to resolve.
- * @param {*} [defaultValue] The value returned if the resolved value is `undefined`.
- * @returns {*} Returns the resolved value.
- * @example
- *
- * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
- *
- * _.result(object, 'a[0].b.c1');
- * // => 3
- *
- * _.result(object, 'a[0].b.c2');
- * // => 4
- *
- * _.result(object, 'a.b.c', 'default');
- * // => 'default'
- *
- * _.result(object, 'a.b.c', _.constant('default'));
- * // => 'default'
- */
- function result(object, path, defaultValue) {
- var result = object == null ? undefined : object[path];
- if (result === undefined) {
- if (object != null && !isKey(path, object)) {
- path = toPath(path);
- object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
- result = object == null ? undefined : object[last(path)];
- }
- result = result === undefined ? defaultValue : result;
- }
- return isFunction(result) ? result.call(object) : result;
- }
-
- /**
- * Sets the property value of `path` on `object`. If a portion of `path`
- * does not exist it is created.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to augment.
- * @param {Array|string} path The path of the property to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns `object`.
- * @example
- *
- * var object = { 'a': [{ 'b': { 'c': 3 } }] };
- *
- * _.set(object, 'a[0].b.c', 4);
- * console.log(object.a[0].b.c);
- * // => 4
- *
- * _.set(object, 'x[0].y.z', 5);
- * console.log(object.x[0].y.z);
- * // => 5
- */
- function set(object, path, value) {
- if (object == null) {
- return object;
- }
- var pathKey = (path + '');
- path = (object[pathKey] != null || isKey(path, object)) ? [pathKey] : toPath(path);
-
- var index = -1,
- length = path.length,
- lastIndex = length - 1,
- nested = object;
-
- while (nested != null && ++index < length) {
- var key = path[index];
- if (isObject(nested)) {
- if (index == lastIndex) {
- nested[key] = value;
- } else if (nested[key] == null) {
- nested[key] = isIndex(path[index + 1]) ? [] : {};
- }
- }
- nested = nested[key];
- }
- return object;
- }
-
- /**
- * An alternative to `_.reduce`; this method transforms `object` to a new
- * `accumulator` object which is the result of running each of its own enumerable
- * properties through `iteratee`, with each invocation potentially mutating
- * the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
- * with four arguments: (accumulator, value, key, object). Iteratee functions
- * may exit iteration early by explicitly returning `false`.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Array|Object} object The object to iterate over.
- * @param {Function} [iteratee=_.identity] The function invoked per iteration.
- * @param {*} [accumulator] The custom accumulator value.
- * @param {*} [thisArg] The `this` binding of `iteratee`.
- * @returns {*} Returns the accumulated value.
- * @example
- *
- * _.transform([2, 3, 4], function(result, n) {
- * result.push(n *= n);
- * return n % 2 == 0;
- * });
- * // => [4, 9]
- *
- * _.transform({ 'a': 1, 'b': 2 }, function(result, n, key) {
- * result[key] = n * 3;
- * });
- * // => { 'a': 3, 'b': 6 }
- */
- function transform(object, iteratee, accumulator, thisArg) {
- var isArr = isArray(object) || isTypedArray(object);
- iteratee = getCallback(iteratee, thisArg, 4);
-
- if (accumulator == null) {
- if (isArr || isObject(object)) {
- var Ctor = object.constructor;
- if (isArr) {
- accumulator = isArray(object) ? new Ctor : [];
- } else {
- accumulator = baseCreate(isFunction(Ctor) ? Ctor.prototype : undefined);
- }
- } else {
- accumulator = {};
- }
- }
- (isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
- return iteratee(accumulator, value, index, object);
- });
- return accumulator;
- }
-
- /**
- * Creates an array of the own enumerable property values of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property values.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.values(new Foo);
- * // => [1, 2] (iteration order is not guaranteed)
- *
- * _.values('hi');
- * // => ['h', 'i']
- */
- function values(object) {
- return baseValues(object, keys(object));
- }
-
- /**
- * Creates an array of the own and inherited enumerable property values
- * of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property values.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.valuesIn(new Foo);
- * // => [1, 2, 3] (iteration order is not guaranteed)
- */
- function valuesIn(object) {
- return baseValues(object, keysIn(object));
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Checks if `n` is between `start` and up to but not including, `end`. If
- * `end` is not specified it is set to `start` with `start` then set to `0`.
- *
- * @static
- * @memberOf _
- * @category Number
- * @param {number} n The number to check.
- * @param {number} [start=0] The start of the range.
- * @param {number} end The end of the range.
- * @returns {boolean} Returns `true` if `n` is in the range, else `false`.
- * @example
- *
- * _.inRange(3, 2, 4);
- * // => true
- *
- * _.inRange(4, 8);
- * // => true
- *
- * _.inRange(4, 2);
- * // => false
- *
- * _.inRange(2, 2);
- * // => false
- *
- * _.inRange(1.2, 2);
- * // => true
- *
- * _.inRange(5.2, 4);
- * // => false
- */
- function inRange(value, start, end) {
- start = +start || 0;
- if (end === undefined) {
- end = start;
- start = 0;
- } else {
- end = +end || 0;
- }
- return value >= nativeMin(start, end) && value < nativeMax(start, end);
- }
-
- /**
- * Produces a random number between `min` and `max` (inclusive). If only one
- * argument is provided a number between `0` and the given number is returned.
- * If `floating` is `true`, or either `min` or `max` are floats, a floating-point
- * number is returned instead of an integer.
- *
- * @static
- * @memberOf _
- * @category Number
- * @param {number} [min=0] The minimum possible value.
- * @param {number} [max=1] The maximum possible value.
- * @param {boolean} [floating] Specify returning a floating-point number.
- * @returns {number} Returns the random number.
- * @example
- *
- * _.random(0, 5);
- * // => an integer between 0 and 5
- *
- * _.random(5);
- * // => also an integer between 0 and 5
- *
- * _.random(5, true);
- * // => a floating-point number between 0 and 5
- *
- * _.random(1.2, 5.2);
- * // => a floating-point number between 1.2 and 5.2
- */
- function random(min, max, floating) {
- if (floating && isIterateeCall(min, max, floating)) {
- max = floating = undefined;
- }
- var noMin = min == null,
- noMax = max == null;
-
- if (floating == null) {
- if (noMax && typeof min == 'boolean') {
- floating = min;
- min = 1;
- }
- else if (typeof max == 'boolean') {
- floating = max;
- noMax = true;
- }
- }
- if (noMin && noMax) {
- max = 1;
- noMax = false;
- }
- min = +min || 0;
- if (noMax) {
- max = min;
- min = 0;
- } else {
- max = +max || 0;
- }
- if (floating || min % 1 || max % 1) {
- var rand = nativeRandom();
- return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
- }
- return baseRandom(min, max);
- }
-
- /*------------------------------------------------------------------------*/
-
- /**
- * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to convert.
- * @returns {string} Returns the camel cased string.
- * @example
- *
- * _.camelCase('Foo Bar');
- * // => 'fooBar'
- *
- * _.camelCase('--foo-bar');
- * // => 'fooBar'
- *
- * _.camelCase('__foo_bar__');
- * // => 'fooBar'
- */
- var camelCase = createCompounder(function(result, word, index) {
- word = word.toLowerCase();
- return result + (index ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
- });
-
- /**
- * Capitalizes the first character of `string`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to capitalize.
- * @returns {string} Returns the capitalized string.
- * @example
- *
- * _.capitalize('fred');
- * // => 'Fred'
- */
- function capitalize(string) {
- string = baseToString(string);
- return string && (string.charAt(0).toUpperCase() + string.slice(1));
- }
-
- /**
- * Deburrs `string` by converting [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
- * to basic latin letters and removing [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to deburr.
- * @returns {string} Returns the deburred string.
- * @example
- *
- * _.deburr('déjà vu');
- * // => 'deja vu'
- */
- function deburr(string) {
- string = baseToString(string);
- return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
- }
-
- /**
- * Checks if `string` ends with the given target string.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to search.
- * @param {string} [target] The string to search for.
- * @param {number} [position=string.length] The position to search from.
- * @returns {boolean} Returns `true` if `string` ends with `target`, else `false`.
- * @example
- *
- * _.endsWith('abc', 'c');
- * // => true
- *
- * _.endsWith('abc', 'b');
- * // => false
- *
- * _.endsWith('abc', 'b', 2);
- * // => true
- */
- function endsWith(string, target, position) {
- string = baseToString(string);
- target = (target + '');
-
- var length = string.length;
- position = position === undefined
- ? length
- : nativeMin(position < 0 ? 0 : (+position || 0), length);
-
- position -= target.length;
- return position >= 0 && string.indexOf(target, position) == position;
- }
-
- /**
- * Converts the characters "&", "<", ">", '"', "'", and "\`", in `string` to
- * their corresponding HTML entities.
- *
- * **Note:** No other characters are escaped. To escape additional characters
- * use a third-party library like [_he_](https://mths.be/he).
- *
- * Though the ">" character is escaped for symmetry, characters like
- * ">" and "/" don't need escaping in HTML and have no special meaning
- * unless they're part of a tag or unquoted attribute value.
- * See [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
- * (under "semi-related fun fact") for more details.
- *
- * Backticks are escaped because in Internet Explorer < 9, they can break out
- * of attribute values or HTML comments. See [#59](https://html5sec.org/#59),
- * [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
- * [#133](https://html5sec.org/#133) of the [HTML5 Security Cheatsheet](https://html5sec.org/)
- * for more details.
- *
- * When working with HTML you should always [quote attribute values](http://wonko.com/post/html-escaping)
- * to reduce XSS vectors.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to escape.
- * @returns {string} Returns the escaped string.
- * @example
- *
- * _.escape('fred, barney, & pebbles');
- * // => 'fred, barney, & pebbles'
- */
- function escape(string) {
- // Reset `lastIndex` because in IE < 9 `String#replace` does not.
- string = baseToString(string);
- return (string && reHasUnescapedHtml.test(string))
- ? string.replace(reUnescapedHtml, escapeHtmlChar)
- : string;
- }
-
- /**
- * Escapes the `RegExp` special characters "\", "/", "^", "$", ".", "|", "?",
- * "*", "+", "(", ")", "[", "]", "{" and "}" in `string`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to escape.
- * @returns {string} Returns the escaped string.
- * @example
- *
- * _.escapeRegExp('[lodash](https://lodash.com/)');
- * // => '\[lodash\]\(https:\/\/lodash\.com\/\)'
- */
- function escapeRegExp(string) {
- string = baseToString(string);
- return (string && reHasRegExpChars.test(string))
- ? string.replace(reRegExpChars, escapeRegExpChar)
- : (string || '(?:)');
- }
-
- /**
- * Converts `string` to [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to convert.
- * @returns {string} Returns the kebab cased string.
- * @example
- *
- * _.kebabCase('Foo Bar');
- * // => 'foo-bar'
- *
- * _.kebabCase('fooBar');
- * // => 'foo-bar'
- *
- * _.kebabCase('__foo_bar__');
- * // => 'foo-bar'
- */
- var kebabCase = createCompounder(function(result, word, index) {
- return result + (index ? '-' : '') + word.toLowerCase();
- });
-
- /**
- * Pads `string` on the left and right sides if it's shorter than `length`.
- * Padding characters are truncated if they can't be evenly divided by `length`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to pad.
- * @param {number} [length=0] The padding length.
- * @param {string} [chars=' '] The string used as padding.
- * @returns {string} Returns the padded string.
- * @example
- *
- * _.pad('abc', 8);
- * // => ' abc '
- *
- * _.pad('abc', 8, '_-');
- * // => '_-abc_-_'
- *
- * _.pad('abc', 3);
- * // => 'abc'
- */
- function pad(string, length, chars) {
- string = baseToString(string);
- length = +length;
-
- var strLength = string.length;
- if (strLength >= length || !nativeIsFinite(length)) {
- return string;
- }
- var mid = (length - strLength) / 2,
- leftLength = nativeFloor(mid),
- rightLength = nativeCeil(mid);
-
- chars = createPadding('', rightLength, chars);
- return chars.slice(0, leftLength) + string + chars;
- }
-
- /**
- * Pads `string` on the left side if it's shorter than `length`. Padding
- * characters are truncated if they exceed `length`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to pad.
- * @param {number} [length=0] The padding length.
- * @param {string} [chars=' '] The string used as padding.
- * @returns {string} Returns the padded string.
- * @example
- *
- * _.padLeft('abc', 6);
- * // => ' abc'
- *
- * _.padLeft('abc', 6, '_-');
- * // => '_-_abc'
- *
- * _.padLeft('abc', 3);
- * // => 'abc'
- */
- var padLeft = createPadDir();
-
- /**
- * Pads `string` on the right side if it's shorter than `length`. Padding
- * characters are truncated if they exceed `length`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to pad.
- * @param {number} [length=0] The padding length.
- * @param {string} [chars=' '] The string used as padding.
- * @returns {string} Returns the padded string.
- * @example
- *
- * _.padRight('abc', 6);
- * // => 'abc '
- *
- * _.padRight('abc', 6, '_-');
- * // => 'abc_-_'
- *
- * _.padRight('abc', 3);
- * // => 'abc'
- */
- var padRight = createPadDir(true);
-
- /**
- * Converts `string` to an integer of the specified radix. If `radix` is
- * `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
- * in which case a `radix` of `16` is used.
- *
- * **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#E)
- * of `parseInt`.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} string The string to convert.
- * @param {number} [radix] The radix to interpret `value` by.
- * @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
- * @returns {number} Returns the converted integer.
- * @example
- *
- * _.parseInt('08');
- * // => 8
- *
- * _.map(['6', '08', '10'], _.parseInt);
- * // => [6, 8, 10]
- */
- function parseInt(string, radix, guard) {
- // Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
- // Chrome fails to trim leading whitespace characters.
- // See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
- if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
- radix = 0;
- } else if (radix) {
- radix = +radix;
- }
- string = trim(string);
- return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
- }
-
- /**
- * Repeats the given string `n` times.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to repeat.
- * @param {number} [n=0] The number of times to repeat the string.
- * @returns {string} Returns the repeated string.
- * @example
- *
- * _.repeat('*', 3);
- * // => '***'
- *
- * _.repeat('abc', 2);
- * // => 'abcabc'
- *
- * _.repeat('abc', 0);
- * // => ''
- */
- function repeat(string, n) {
- var result = '';
- string = baseToString(string);
- n = +n;
- if (n < 1 || !string || !nativeIsFinite(n)) {
- return result;
- }
- // Leverage the exponentiation by squaring algorithm for a faster repeat.
- // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
- do {
- if (n % 2) {
- result += string;
- }
- n = nativeFloor(n / 2);
- string += string;
- } while (n);
-
- return result;
- }
-
- /**
- * Converts `string` to [snake case](https://en.wikipedia.org/wiki/Snake_case).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to convert.
- * @returns {string} Returns the snake cased string.
- * @example
- *
- * _.snakeCase('Foo Bar');
- * // => 'foo_bar'
- *
- * _.snakeCase('fooBar');
- * // => 'foo_bar'
- *
- * _.snakeCase('--foo-bar');
- * // => 'foo_bar'
- */
- var snakeCase = createCompounder(function(result, word, index) {
- return result + (index ? '_' : '') + word.toLowerCase();
- });
-
- /**
- * Converts `string` to [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to convert.
- * @returns {string} Returns the start cased string.
- * @example
- *
- * _.startCase('--foo-bar');
- * // => 'Foo Bar'
- *
- * _.startCase('fooBar');
- * // => 'Foo Bar'
- *
- * _.startCase('__foo_bar__');
- * // => 'Foo Bar'
- */
- var startCase = createCompounder(function(result, word, index) {
- return result + (index ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
- });
-
- /**
- * Checks if `string` starts with the given target string.
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The string to search.
- * @param {string} [target] The string to search for.
- * @param {number} [position=0] The position to search from.
- * @returns {boolean} Returns `true` if `string` starts with `target`, else `false`.
- * @example
- *
- * _.startsWith('abc', 'a');
- * // => true
- *
- * _.startsWith('abc', 'b');
- * // => false
- *
- * _.startsWith('abc', 'b', 1);
- * // => true
- */
- function startsWith(string, target, position) {
- string = baseToString(string);
- position = position == null
- ? 0
- : nativeMin(position < 0 ? 0 : (+position || 0), string.length);
-
- return string.lastIndexOf(target, position) == position;
- }
-
- /**
- * Creates a compiled template function that can interpolate data properties
- * in "interpolate" delimiters, HTML-escape interpolated data properties in
- * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
- * properties may be accessed as free variables in the template. If a setting
- * object is provided it takes precedence over `_.templateSettings` values.
- *
- * **Note:** In the development build `_.template` utilizes
- * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
- * for easier debugging.
- *
- * For more information on precompiling templates see
- * [lodash's custom builds documentation](https://lodash.com/custom-builds).
- *
- * For more information on Chrome extension sandboxes see
- * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
- *
- * @static
- * @memberOf _
- * @category String
- * @param {string} [string=''] The template string.
- * @param {Object} [options] The options object.
- * @param {RegExp} [options.escape] The HTML "escape" delimiter.
- * @param {RegExp} [options.evaluate] The "evaluate" delimiter.
- * @param {Object} [options.imports] An object to import into the template as free variables.
- * @param {RegExp} [options.interpolate] The "interpolate" delimiter.
- * @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
- * @param {string} [options.variable] The data object variable name.
- * @param- {Object} [otherOptions] Enables the legacy `options` param signature.
- * @returns {Function} Returns the compiled template function.
- * @example
- *
- * // using the "interpolate" delimiter to create a compiled template
- * var compiled = _.template('hello <%= user %>!');
- * compiled({ 'user': 'fred' });
- * // => 'hello fred!'
- *
- * // using the HTML "escape" delimiter to escape data property values
- * var compiled = _.template('<%- value %> ');
- * compiled({ 'value': '
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