{ "parser": "babel-eslint", "plugins": [ "react", "babel", "jsx", "prettier" ], "extends": [ "eslint:recommended", "plugin:react/recommended" ], "parserOptions": { "ecmaVersion": 2016, "sourceType": "module", "ecmaFeatures": { "jsx": true } }, "settings": { "react": { "createClass": "createReactClass", "pragma": "React", "version": "16.8.6" } }, "env": { "node": true, "commonjs": true, "browser": true, "jasmine": true, "es6": true }, "globals": { "document": true, "console": true, // Only for development purposes "setTimeout": true, "window" : true }, "rules": { "prettier/prettier": "error", // Enforce the spacing around the * in generator functions. "generator-star-spacing": [2, "after"], // Disallow using variables outside the blocks they are defined (especially // since only let and const are used, see "no-var"). "block-scoped-var": 2, // Require camel case names "camelcase": 2, // Allow trailing commas for easy list extension. Having them does not // impair readability, but also not required either. "comma-dangle": 0, // Warn about cyclomatic complexity in functions. "complexity": 1, // Don't warn for inconsistent naming when capturing this (not so important // with auto-binding fat arrow functions). "consistent-this": 0, // Enforce curly brace conventions for all control statements. "curly": 2, // Don't require a default case in switch statements. Avoid being forced to // add a bogus default when you know all possible cases are handled. "default-case": 0, // Encourage the use of dot notation whenever possible. "dot-notation": 2, // Allow mixed 'LF' and 'CRLF' as linebreaks. "linebreak-style": 0, // Don't enforce the maximum depth that blocks can be nested. "max-depth": 0, // Maximum length of a line. "max-len": [2, 120, 2, { "ignoreStrings": true, "ignoreUrls": true}], // Maximum depth callbacks can be nested. "max-nested-callbacks": [2, 3], // Don't limit the number of parameters that can be used in a function. "max-params": 0, // Don't limit the maximum number of statement allowed in a function. "max-statements": 0, // Require a capital letter for constructors, only check if all new // operators are followed by a capital letter. Don't warn when capitalized // functions are used without the new operator. "new-cap": [2, {"capIsNew": false}], // Disallow use of the Array constructor. "no-array-constructor": 2, // Allow use of bitwise operators. "no-bitwise": 0, // Disallow use of arguments.caller or arguments.callee. "no-caller": 2, // Disallow the catch clause parameter name being the same as a variable in // the outer scope, to avoid confusion. "no-catch-shadow": 2, // Disallow assignment in conditional expressions. "no-cond-assign": 2, // Allow using the console API. "no-console": 0, // Allow using constant expressions in conditions like while (true) "no-constant-condition": 0, // Allow use of the continue statement. "no-continue": 0, // Disallow control characters in regular expressions. "no-control-regex": 2, // Disallow deletion of variables (deleting properties is fine). "no-delete-var": 2, // Disallow duplicate arguments in functions. "no-dupe-args": 2, // Disallow duplicate keys when creating object literals. "no-dupe-keys": 2, // Disallow multiple empty lines "no-multiple-empty-lines": "error", // Disallow a duplicate case label. "no-duplicate-case": 2, // Disallow else after a return in an if. The else around the second return // here is useless: // if (something) { return false; } else { return true; } "no-else-return": 2, // Disallow empty statements. This will report an error for: // try { something(); } catch (e) {} // but will not report it for: // try { something(); } catch (e) { /* Silencing the error because ...*/ } // which is a valid use case. "no-empty": 2, // Disallow the use of empty character classes in regular expressions. "no-empty-character-class": 2, // Disallow use of labels for anything other then loops and switches. "no-labels": 2, // Disallow use of eval(). We have other APIs to evaluate code in content. "no-eval": 2, // Disallow assigning to the exception in a catch block. "no-ex-assign": 2, // Disallow adding to native types "no-extend-native": 2, // Disallow unnecessary function binding. "no-extra-bind": 2, // Disallow double-negation boolean casts in a boolean context. "no-extra-boolean-cast": 2, // Allow unnecessary parentheses, as they may make the code more readable. "no-extra-parens": 0, // Disallow fallthrough of case statements, except if there is a comment. "no-fallthrough": 2, // Allow the use of leading or trailing decimal points in numeric literals. "no-floating-decimal": 0, // Disallow if as the only statement in an else block. "no-lonely-if": 2, // Disallow use of multiline strings (use template strings instead). "no-multi-str": 2, // Disallow reassignments of native objects. "no-native-reassign": 2, // Disallow nested ternary expressions, they make the code hard to read. "no-nested-ternary": 2, // Allow use of new operator with the require function. "no-new-require": 0, // Disallow use of octal literals. "no-octal": 2, // Allow reassignment of function parameters. "no-param-reassign": 0, // Allow string concatenation with __dirname and __filename (not a node env). "no-path-concat": 0, // Allow use of unary operators, ++ and --. "no-plusplus": 0, // Allow using process.env (not a node environment). "no-process-env": 0, // Allow using process.exit (not a node environment). "no-process-exit": 0, // Disallow usage of __proto__ property. "no-proto": 2, // Disallow declaring the same variable more than once (we use let anyway). "no-redeclare": 2, // Disallow multiple spaces in a regular expression literal. "no-regex-spaces": 2, // Allow reserved words being used as object literal keys. "no-reserved-keys": 0, // Don't restrict usage of specified node modules (not a node environment). "no-restricted-modules": 0, // Disallow use of assignment in return statement. It is preferable for a // single line of code to have only one easily predictable effect. "no-return-assign": 2, // Allow use of javascript: urls. "no-script-url": 0, // Disallow comparisons where both sides are exactly the same. "no-self-compare": 2, // Disallow use of comma operator. "no-sequences": 2, // Warn about declaration of variables already declared in the outer scope. // This isn't an error because it sometimes is useful to use the same name // in a small helper function rather than having to come up with another // random name. // Still, making this a warning can help people avoid being confused. "no-shadow": 0, // Require empty line at end of file "eol-last": "error", // Disallow shadowing of names such as arguments. "no-shadow-restricted-names": 2, "no-space-before-semi": 0, // Disallow sparse arrays, eg. let arr = [,,2]. // Array destructuring is fine though: // for (let [, breakpointPromise] of aPromises) "no-sparse-arrays": 2, // Allow use of synchronous methods (not a node environment). "no-sync": 0, // Allow the use of ternary operators. "no-ternary": 0, // Don't allow spaces after end of line "no-trailing-spaces": "error", // Disallow throwing literals (eg. throw "error" instead of // throw new Error("error")). "no-throw-literal": 2, // Disallow use of undeclared variables unless mentioned in a /*global */ // block. Note that globals from head.js are automatically imported in tests // by the import-headjs-globals rule form the mozilla eslint plugin. "no-undef": 2, // Allow use of undefined variable. "no-undefined": 0, // Disallow the use of Boolean literals in conditional expressions. "no-unneeded-ternary": 2, // Disallow unreachable statements after a return, throw, continue, or break // statement. "no-unreachable": 2, // Allow using variables before they are defined. "no-unused-vars": [2, {"vars": "all", "args": "none"}], // Disallow global and local variables that arent used, but allow unused function arguments. "no-use-before-define": 0, // We use var-only-at-top-level instead of no-var as we allow top level // vars. "no-var": 0, // Allow using TODO/FIXME comments. "no-warning-comments": 0, // Disallow use of the with statement. "no-with": 2, // Dont require method and property shorthand syntax for object literals. // We use this in the code a lot, but not consistently, and this seems more // like something to check at code review time. "object-shorthand": 0, // Allow more than one variable declaration per function. "one-var": 0, // Single quotes should be used. "quotes": [2, "single", "avoid-escape"], // Require use of the second argument for parseInt(). "radix": 2, // Dont require to sort variables within the same declaration block. // Anyway, one-var is disabled. "sort-vars": 0, "space-after-function-name": 0, "space-before-function-parentheses": 0, // Disallow space before function opening parenthesis. //"space-before-function-paren": [2, "never"], // Disable the rule that checks if spaces inside {} and [] are there or not. // Our code is split on conventions, and itd be nice to have 2 rules // instead, one for [] and one for {}. So, disabling until we write them. "space-in-brackets": 0, // Deprecated, will be removed in 1.0. "space-unary-word-ops": 0, // Require a space immediately following the // in a line comment. "spaced-comment": [2, "always"], // Require "use strict" to be defined globally in the script. "strict": [2, "global"], // Disallow comparisons with the value NaN. "use-isnan": 2, // Warn about invalid JSDoc comments. // Disabled for now because of https://github.com/eslint/eslint/issues/2270 // The rule fails on some jsdoc comments like in: // devtools/client/webconsole/console-output.js "valid-jsdoc": 0, // Ensure that the results of typeof are compared against a valid string. "valid-typeof": 2, // Allow vars to be declared anywhere in the scope. "vars-on-top": 0, // Dont require immediate function invocation to be wrapped in parentheses. "wrap-iife": 0, // Don't require regex literals to be wrapped in parentheses (which // supposedly prevent them from being mistaken for division operators). "wrap-regex": 0, // Require for-in loops to have an if statement. "guard-for-in": 0, // allow/disallow an empty newline after var statement "newline-after-var": 0, // disallow the use of alert, confirm, and prompt "no-alert": 0, // disallow the use of deprecated react changes and lifecycle methods "react/no-deprecated": 0, // disallow comparisons to null without a type-checking operator "no-eq-null": 0, // disallow overwriting functions written as function declarations "no-func-assign": 0, // disallow use of eval()-like methods "no-implied-eval": 0, // disallow function or variable declarations in nested blocks "no-inner-declarations": 0, // disallow invalid regular expression strings in the RegExp constructor "no-invalid-regexp": 0, // disallow irregular whitespace outside of strings and comments "no-irregular-whitespace": 0, // disallow unnecessary nested blocks "no-lone-blocks": 0, // disallow creation of functions within loops "no-loop-func": 0, // disallow use of new operator when not part of the assignment or // comparison "no-new": 0, // disallow use of new operator for Function object "no-new-func": 0, // disallow use of the Object constructor "no-new-object": 0, // disallows creating new instances of String,Number, and Boolean "no-new-wrappers": 0, // disallow the use of object properties of the global object (Math and // JSON) as functions "no-obj-calls": 0, // disallow use of octal escape sequences in string literals, such as // var foo = "Copyright \251"; "no-octal-escape": 0, // disallow use of undefined when initializing variables "no-undef-init": 0, // disallow usage of expressions in statement position "no-unused-expressions": 0, // disallow use of void operator "no-void": 0, // disallow wrapping of non-IIFE statements in parens "no-wrap-func": 0, // require assignment operator shorthand where possible or prohibit it // entirely "operator-assignment": 0, // enforce operators to be placed before or after line breaks "operator-linebreak": 0, // disable chacking prop types "react/prop-types": 0 } }