{ "env": { "node": true, "mocha": true, "es6": true }, "rules": { ////////// Possible Errors ////////// "comma-dangle": 2, // disallow or enforce trailing commas (recommended) "no-cond-assign": 2, // disallow assignment in conditional expressions (recommended) "no-console": 0, // disallow use of console in the node environment (recommended) "no-constant-condition": 2, // disallow use of constant expressions in conditions (recommended) "no-control-regex": 2, // disallow control characters in regular expressions (recommended) "no-debugger": 2, // disallow use of debugger (recommended) "no-dupe-args": 2, // disallow duplicate arguments in functions (recommended) "no-dupe-keys": 2, // disallow duplicate keys when creating object literals (recommended) "no-duplicate-case": 2, // disallow a duplicate case label. (recommended) "no-empty-character-class": 2, // disallow the use of empty character classes in regular expressions (recommended) "no-empty": 2, // disallow empty statements (recommended) "no-ex-assign": 2, // disallow assigning to the exception in a catch block (recommended) "no-extra-boolean-cast": 2, // disallow double-negation boolean casts in a boolean context (recommended) "no-extra-parens": 2, // disallow unnecessary parentheses "no-extra-semi": 2, // disallow unnecessary semicolons (recommended) (fixable) "no-func-assign": 2, // disallow overwriting functions written as function declarations (recommended) "no-inner-declarations": 2, // disallow function or variable declarations in nested blocks (recommended) "no-invalid-regexp": 2, // disallow invalid regular expression strings in the RegExp constructor (recommended) "no-irregular-whitespace": 2, // disallow irregular whitespace outside of strings and comments (recommended) "no-negated-in-lhs": 2, // disallow negation of the left operand of an in expression (recommended) "no-obj-calls": 2, // disallow the use of object properties of the global object (Math and JSON) as functions (recommended) "no-regex-spaces": 2, // disallow multiple spaces in a regular expression literal (recommended) "no-sparse-arrays": 2, // disallow sparse arrays (recommended) "no-unexpected-multiline": 2, // Avoid code that looks like two expressions but is actually one "no-unreachable": 2, // disallow unreachable statements after a return, throw, continue, or break statement (recommended) "use-isnan": 2, // disallow comparisons with the value NaN (recommended) "valid-jsdoc": 2, // Ensure JSDoc comments are valid "valid-typeof": 2, // Ensure that the results of typeof are compared against a valid string (recommended) ////////// Best Practices ////////// "accessor-pairs": 2, // Enforces getter/setter pairs in objects "block-scoped-var": 2, // treat var statements as if they were block scoped "complexity": 2, // specify the maximum cyclomatic complexity allowed in a program "consistent-return": 2, // require return statements to either always or never specify values "curly": 2, // specify curly brace conventions for all control statements "default-case": 2, // require default case in switch statements "dot-location": 0, // enforces consistent newlines before or after dots "dot-notation": 2, // encourages use of dot notation whenever possible "eqeqeq": 2, // require the use of === and !== (fixable) "guard-for-in": 2, // make sure for-in loops have an if statement "no-alert": 2, // disallow the use of alert, confirm, and prompt "no-caller": 2, // disallow use of arguments.caller or arguments.callee "no-div-regex": 2, // disallow division operators explicitly at beginning of regular expression "no-else-return": 2, // disallow else after a return in an if "no-empty-pattern": 2, // disallow use of empty destructuring patterns "no-eq-null": 2, // disallow comparisons to null without a type-checking operator "no-eval": 2, // disallow use of eval() "no-extend-native": 2, // disallow adding to native types "no-extra-bind": 2, // disallow unnecessary function binding "no-fallthrough": 2, // disallow fallthrough of case statements (recommended) "no-floating-decimal": 2, // disallow the use of leading or trailing decimal points in numeric literals "no-implicit-coercion": 2, // disallow the type conversions with shorter notations "no-implied-eval": 2, // disallow use of eval()-like methods "no-invalid-this": 0, // disallow this keywords outside of classes or class-like objects "no-iterator": 2, // disallow usage of __iterator__ property "no-labels": 2, // disallow use of labeled statements "no-lone-blocks": 2, // disallow unnecessary nested blocks "no-loop-func": 2, // disallow creation of functions within loops "no-magic-numbers": 0, // disallow the use of magic numbers "no-multi-spaces": 0, // disallow use of multiple spaces (fixable) "no-multi-str": 2, // disallow use of multiline strings "no-native-reassign": 2, // disallow reassignments of native objects "no-new-func": 2, // disallow use of new operator for Function object "no-new-wrappers": 2, // disallows creating new instances of String,Number, and Boolean "no-new": 2, // disallow use of the new operator when not part of an assignment or comparison "no-octal-escape": 2, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251"; "no-octal": 2, // disallow use of octal literals (recommended) "no-param-reassign": 0, // disallow reassignment of function parameters "no-process-env": 0, // disallow use of process.env "no-proto": 2, // disallow usage of __proto__ property "no-redeclare": 2, // disallow declaring the same variable more than once (recommended) "no-return-assign": 2, // disallow use of assignment in return statement "no-script-url": 2, // disallow use of javascript: urls. "no-self-compare": 2, // disallow comparisons where both sides are exactly the same "no-sequences": 2, // disallow use of the comma operator "no-throw-literal": 2, // restrict what can be thrown as an exception "no-unused-expressions": 2, // disallow usage of expressions in statement position "no-useless-call": 2, // disallow unnecessary .call() and .apply() "no-useless-concat": 2, // disallow unnecessary concatenation of literals or template literals "no-void": 2, // disallow use of the void operator "no-warning-comments": 1, // disallow usage of configurable warning terms in comments, e.g. TODO or FIXME "no-with": 2, // disallow use of the with statement "radix": 2, // require use of the second argument for parseInt() "vars-on-top": 2, // require declaration of all vars at the top of their containing scope "wrap-iife": 2, // require immediate function invocation to be wrapped in parentheses "yoda": 2, // require or disallow Yoda conditions ////////// Strict Mode ////////// "strict": 0, // controls location of Use Strict Directives ////////// Variables ////////// "init-declarations": 2, // enforce or disallow variable initializations at definition "no-catch-shadow": 2, // disallow the catch clause parameter name being the same as a variable in the outer scope "no-delete-var": 2, // disallow deletion of variables (recommended) "no-label-var": 2, // disallow labels that share a name with a variable "no-shadow-restricted-names": 2, // disallow shadowing of names such as arguments "no-shadow": 2, // disallow declaration of variables already declared in the outer scope "no-undef-init": 2, // disallow use of undefined when initializing variables "no-undef": 2, // disallow use of undeclared variables unless mentioned in a /*global */ block (recommended) "no-undefined": 0, // disallow use of undefined variable "no-unused-vars": 2, // disallow declaration of variables that are not used in the code (recommended) "no-use-before-define": 2, // disallow use of variables before they are defined ////////// Node.js and CommonJS ////////// "callback-return": 2, // enforce return after a callback "global-require": 2, // enforce require() on top-level module scope "handle-callback-err": 2, // enforce error handling in callbacks "no-mixed-requires": 2, // disallow mixing regular variable and require declarations "no-new-require": 2, // disallow use of new operator with the require function "no-path-concat": 2, // disallow string concatenation with __dirname and __filename "no-process-exit": 2, // disallow process.exit() "no-restricted-modules": 2, // restrict usage of specified node modules "no-sync": 2, // disallow use of synchronous methods ////////// Stylistic Issues ////////// "array-bracket-spacing": [2, "always"], // enforce spacing inside array brackets (fixable) "block-spacing": 2, // disallow or enforce spaces inside of single line blocks (fixable) "brace-style": [2, "stroustrup"], // enforce one true brace style "camelcase": 2, // require camel case names "comma-spacing": 2, // enforce spacing before and after comma "comma-style": 0, // enforce one true comma style "computed-property-spacing": 2, // require or disallow padding inside computed properties (fixable) "consistent-this": [2, "self"], // enforce consistent naming when capturing the current execution context "eol-last": 2, // enforce newline at the end of file, with no multiple empty lines (fixable) "func-names": 0, // require function expressions to have a name "func-style": 0, // enforce use of function declarations or expressions "id-length": 0, // this option enforces minimum and maximum identifier lengths (variable names, property names etc.) "id-match": 2, // require identifiers to match the provided regular expression "indent": 0, // specify tab or space width for your code (fixable) "jsx-quotes": 2, // specify whether double or single quotes should be used in JSX attributes "key-spacing": 0, // enforce spacing between keys and values in object literal properties "keyword-spacing": 2, // require a space before certain keywords (fixable) "linebreak-style": [2, "unix"], // disallow mixed 'LF' and 'CRLF' as linebreaks "lines-around-comment": 2, // enforce empty lines around comments "max-nested-callbacks": 2, // specify the maximum depth callbacks can be nested "new-cap": 2, // require a capital letter for constructors "new-parens": 2, // disallow the omission of parentheses when invoking a constructor with no arguments "newline-after-var": 0, // require or disallow an empty newline after variable declarations "no-array-constructor": 2, // disallow use of the Array constructor "no-continue": 2, // disallow use of the continue statement "no-inline-comments": 0, // disallow comments inline after code "no-lonely-if": 0, // disallow if as the only statement in an else block "no-mixed-spaces-and-tabs": 2, // disallow mixed spaces and tabs for indentation (recommended) "no-multiple-empty-lines": 2, // disallow multiple empty lines "no-negated-condition": 0, // disallow negated conditions "no-nested-ternary": 0, // disallow nested ternary expressions "no-new-object": 2, // disallow the use of the Object constructor "no-restricted-syntax": 2, // disallow use of certain syntax in code "no-spaced-func": 2, // disallow space between function identifier and application (fixable) "no-ternary": 0, // disallow the use of ternary operators "no-trailing-spaces": 2, // disallow trailing whitespace at the end of lines (fixable) "no-underscore-dangle": 0, // disallow dangling underscores in identifiers "no-unneeded-ternary": 0, // disallow the use of ternary operators when a simpler alternative exists "object-curly-spacing": [2, "always"], // require or disallow padding inside curly braces (fixable) "one-var": 0, // require or disallow one variable declaration per function "operator-assignment": 2, // require assignment operator shorthand where possible or prohibit it entirely "operator-linebreak": [2, "before"], // enforce operators to be placed before or after line breaks "padded-blocks": 0, // enforce padding within blocks "quote-props": 0, // require quotes around object literal property names "quotes": 0, // specify whether backticks, double or single quotes should be used (fixable) "require-jsdoc": 0, // Require JSDoc comment "semi-spacing": 2, // enforce spacing before and after semicolons "semi": 2, // require or disallow use of semicolons instead of ASI (fixable) "sort-vars": 2, // sort variables within the same declaration block "space-after-keywords": 0, // require a space after certain keywords (fixable) "space-before-blocks": 2, // require or disallow a space before blocks (fixable) "space-before-function-paren": 0, // require or disallow a space before function opening parenthesis (fixable) "space-in-parens": 2, // require or disallow spaces inside parentheses "space-infix-ops": 2, // require spaces around operators (fixable) "space-unary-ops": 2, // require or disallow spaces before/after unary operators (fixable) "spaced-comment": 2, // require or disallow a space immediately following the // or /* in a comment "wrap-regex": 2, // require regex literals to be wrapped in parentheses ////////// ECMAScript 6 ////////// "arrow-parens": 0, // require parens in arrow function arguments "arrow-spacing": 2, // require space before/after arrow function's arrow (fixable) "constructor-super": 2, // verify calls of super() in constructors "generator-star-spacing": 0, // enforce spacing around the * in generator functions (fixable) "no-class-assign": 2, // disallow modifying variables of class declarations "no-const-assign": 2, // disallow modifying variables that are declared using const "no-dupe-class-members": 2, // disallow duplicate name in class members "no-this-before-super": 2, // disallow use of this/super before calling super() in constructors. "no-var": 2, // require let or const instead of var "object-shorthand": 2, // require method and property shorthand syntax for object literals "prefer-arrow-callback": 2, // suggest using arrow functions as callbacks "prefer-const": 0, // suggest using const declaration for variables that are never modified after declared "prefer-reflect": 0, // suggest using Reflect methods where applicable "prefer-spread": 0, // suggest using the spread operator instead of .apply(). "prefer-template": 2, // suggest using template literals instead of strings concatenation "require-yield": 0, // disallow generator functions that do not have yield } }