{ "globals": { // e.g. "angular": true }, "plugins": [ "babel", "react", "flowtype", "react-native" // e.g. "react" (must run `npm install eslint-plugin-react` first) ], "extends": [ "eslint:recommended", "plugin:react/recommended" ], "parser": "babel-eslint", "env": { "browser": false, // browser global variables. "node": false, // Node.js global variables and Node.js-specific rules. "amd": false, // defines require() and define() as global variables as per the amd spec. "mocha": false, // adds all of the Mocha testing global variables. "jasmine": false, // adds all of the Jasmine testing global variables for version 1.3 and 2.1. "phantomjs": false, // phantomjs global variables. "jquery": false, // jquery global variables. "prototypejs": false, // prototypejs global variables. "shelljs": false, // shelljs global variables. "commonjs": true, "es6": true }, "parserOptions": { "ecmaFeatures": { "binaryLiterals": false, // enable binary literals "blockBindings": false, // enable let and const (aka block bindings) "defaultParams": false, // enable default function parameters "forOf": false, // enable for-of loops "generators": false, // enable generators "objectLiteralComputedProperties": false, // enable computed object literal property names "objectLiteralDuplicateProperties": false, // enable duplicate object literal properties in strict mode "objectLiteralShorthandMethods": false, // enable object literal shorthand methods "objectLiteralShorthandProperties": false, // enable object literal shorthand properties "octalLiterals": false, // enable octal literals "regexUFlag": false, // enable the regular expression u flag "regexYFlag": false, // enable the regular expression y flag "templateStrings": false, // enable template strings "unicodeCodePointEscapes": false, // enable code point escapes "jsx": true, // enable JSX "modules": true, "spread": true, "restParams": true, "experimentalObjectRestSpread": true }, "sourceType": "module" }, "rules": { ////////// Possible Errors ////////// "comma-dangle": 0, // disallow trailing commas in object literals "no-cond-assign": 0, // disallow assignment in conditional expressions "no-console": 1, // disallow use of console (off by default in the node environment) "no-constant-condition": 1, // disallow use of constant expressions in conditions "no-control-regex": 1, // disallow control characters in regular expressions "no-debugger": 1, // disallow use of debugger "no-dupe-keys": 1, // disallow duplicate keys when creating object literals "no-empty": 1, // disallow empty statements "no-empty-character-class": 1, // disallow the use of empty character classes in regular expressions "no-ex-assign": 1, // disallow assigning to the exception in a catch block "no-extra-boolean-cast": 1, // disallow double-negation boolean casts in a boolean context "no-extra-parens": 0, // disallow unnecessary parentheses (off by default) "no-extra-semi": 1, // disallow unnecessary semicolons "no-func-assign": 1, // disallow overwriting functions written as function declarations "no-inner-declarations": 1, // disallow function or variable declarations in nested blocks "no-invalid-regexp": 1, // disallow invalid regular expression strings in the RegExp constructor "no-irregular-whitespace": 1, // disallow irregular whitespace outside of strings and comments "no-negated-in-lhs": 1, // disallow negation of the left operand of an in expression "no-obj-calls": 1, // disallow the use of object properties of the global object (Math and JSON) as functions "no-regex-spaces": 1, // disallow multiple spaces in a regular expression literal "quote-props": 0, // disallow reserved words being used as object literal keys (off by default) "no-sparse-arrays": 1, // disallow sparse arrays "no-unreachable": 1, // disallow unreachable statements after a return, throw, continue, or break statement "use-isnan": 1, // disallow comparisons with the value NaN "valid-jsdoc": 1, // Ensure JSDoc comments are valid (off by default) "valid-typeof": 1, // Ensure that the results of typeof are compared against a valid string ////////// Best Practices ////////// "block-scoped-var": 1, // treat var statements as if they were block scoped (off by default) "complexity": 1, // specify the maximum cyclomatic complexity allowed in a program (off by default) "consistent-return": 1, // require return statements to either always or never specify values "curly": 0, // specify curly brace conventions for all control statements "default-case": 1, // require default case in switch statements (off by default) "dot-notation": 1, // encourages use of dot notation whenever possible "eqeqeq": 1, // require the use of === and !== "guard-for-in": 1, // make sure for-in loops have an if statement (off by default) "no-alert": 1, // disallow the use of alert, confirm, and prompt "no-caller": 1, // disallow use of arguments.caller or arguments.callee "no-div-regex": 1, // disallow division operators explicitly at beginning of regular expression (off by default) "no-else-return": 1, // disallow else after a return in an if (off by default) "no-labels": 1, // disallow use of labels for anything other then loops and switches "no-eq-null": 1, // disallow comparisons to null without a type-checking operator (off by default) "no-eval": 1, // disallow use of eval() "no-extend-native": 1, // disallow adding to native types "no-extra-bind": 1, // disallow unnecessary function binding "no-fallthrough": 1, // disallow fallthrough of case statements "no-floating-decimal": 0, // disallow the use of leading or trailing decimal points in numeric literals (off by default) "no-implied-eval": 1, // disallow use of eval()-like methods "no-iterator": 1, // disallow usage of __iterator__ property "no-lone-blocks": 1, // disallow unnecessary nested blocks "no-loop-func": 1, // disallow creation of functions within loops "no-multi-spaces": 1, // disallow use of multiple spaces "no-multi-str": 1, // disallow use of multiline strings "no-native-reassign": 1, // disallow reassignments of native objects "no-new": 1, // disallow use of new operator when not part of the assignment or comparison "no-new-func": 1, // disallow use of new operator for Function object "no-new-wrappers": 1, // disallows creating new instances of String, Number, and Boolean "no-octal": 1, // disallow use of octal literals "no-octal-escape": 1, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251"; "no-process-env": 0, // disallow use of process.env (off by default) "no-proto": 1, // disallow usage of __proto__ property "no-redeclare": 1, // disallow declaring the same variable more then once "no-return-assign": 1, // disallow use of assignment in return statement "no-script-url": 1, // disallow use of javascript: urls. "no-self-compare": 1, // disallow comparisons where both sides are exactly the same (off by default) "no-sequences": 1, // disallow use of comma operator "no-unused-expressions": 0, // disallow usage of expressions in statement position "no-void": 1, // disallow use of void operator (off by default) "no-warning-comments": 0, // disallow usage of configurable warning terms in comments, e.g. TODO or FIXME (off by default) "no-with": 1, // disallow use of the with statement "radix": 1, // require use of the second argument for parseInt() (off by default) "vars-on-top": 1, // requires to declare all vars on top of their containing scope (off by default) "wrap-iife": 1, // require immediate function invocation to be wrapped in parentheses (off by default) "yoda": 1, // require or disallow Yoda conditions ////////// Strict Mode ////////// "strict": 1, // controls location of Use Strict Directives ////////// Variables ////////// "no-catch-shadow": 1, // disallow the catch clause parameter name being the same as a variable in the outer scope (off by default in the node environment) "no-delete-var": 1, // disallow deletion of variables "no-label-var": 1, // disallow labels that share a name with a variable "no-shadow": 1, // disallow declaration of variables already declared in the outer scope "no-shadow-restricted-names": 1, // disallow shadowing of names such as arguments "no-undef": 1, // disallow use of undeclared variables unless mentioned in a /*global */ block "no-undef-init": 1, // disallow use of undefined when initializing variables "no-undefined": 1, // disallow use of undefined variable (off by default) "no-unused-vars": 1, // disallow declaration of variables that are not used in the code "no-use-before-define": 0, // disallow use of variables before they are defined ////////// Node.js ////////// "handle-callback-err": 1, // enforces error handling in callbacks (off by default) (on by default in the node environment) "no-mixed-requires": 1, // disallow mixing regular variable and require declarations (off by default) (on by default in the node environment) "no-new-require": 1, // disallow use of new operator with the require function (off by default) (on by default in the node environment) "no-path-concat": 1, // disallow string concatenation with __dirname and __filename (off by default) (on by default in the node environment) "no-process-exit": 1, // disallow process.exit() (on by default in the node environment) "no-restricted-modules": 1, // restrict usage of specified node modules (off by default) "no-sync": 0, // disallow use of synchronous methods (off by default) ////////// Stylistic Issues ////////// "brace-style": 1, // enforce one true brace style (off by default) "camelcase": 1, // require camel case names "comma-spacing": 1, // enforce spacing before and after comma "comma-style": 0, // enforce one true comma style (off by default) "consistent-this": 1, // enforces consistent naming when capturing the current execution context (off by default) "eol-last": 1, // enforce newline at the end of file, with no multiple empty lines "func-names": 1, // require function expressions to have a name (off by default) "func-style": 1, // enforces use of function declarations or expressions (off by default) "key-spacing": 1, // enforces spacing between keys and values in object literal properties "max-nested-callbacks": 1, // specify the maximum depth callbacks can be nested (off by default) "new-cap": 1, // require a capital letter for constructors "new-parens": 1, // disallow the omission of parentheses when invoking a constructor with no arguments "no-array-constructor": 1, // disallow use of the Array constructor "no-inline-comments": 0, // disallow comments inline after code (off by default) "no-lonely-if": 1, // disallow if as the only statement in an else block (off by default) "no-mixed-spaces-and-tabs": 1, // disallow mixed spaces and tabs for indentation "no-multiple-empty-lines": 1, // disallow multiple empty lines (off by default) "no-nested-ternary": 0, // disallow nested ternary expressions (off by default) "no-new-object": 1, // disallow use of the Object constructor "semi-spacing": 1, // disallow space before semicolon "no-spaced-func": 1, // disallow space between function identifier and application "no-ternary": 0, // disallow the use of ternary operators (off by default) "no-trailing-spaces": 1, // disallow trailing whitespace at the end of lines "no-underscore-dangle": 1, // disallow dangling underscores in identifiers "one-var": 0, // allow just one var statement per function (off by default) "operator-assignment": 1, // require assignment operator shorthand where possible or prohibit it entirely (off by default) "padded-blocks": 0, // enforce padding within blocks (off by default) "quotes": 0, // specify whether double or single quotes should be used "semi": 0, // require or disallow use of semicolons instead of ASI "sort-vars": 0, // sort variables within the same declaration block (off by default) "space-before-function-paren": 0, // require a space after function names (off by default) "keyword-spacing": 1, // require a space after certain keywords (off by default) "space-before-blocks": 1, // require or disallow space before blocks (off by default) "object-curly-spacing": 0, // require or disallow spaces inside brackets (off by default) "computed-property-spacing": 1, "array-bracket-spacing": 1, "space-in-parens": 1, // require or disallow spaces inside parentheses (off by default) "space-infix-ops": 1, // require spaces around operators "space-unary-ops": 1, // Require or disallow spaces before/after unary operators (words on by default, nonwords off by default) "spaced-comment": 1, // require or disallow a space immediately following the // in a line comment (off by default) "wrap-regex": 1, // require regex literals to be wrapped in parentheses (off by default) ////////// ECMAScript 6 ////////// "no-var": 1, // require let or const instead of var (off by default) "generator-star-spacing": 1, // enforce the position of the * in generator functions (off by default) ////////// Legacy ////////// "max-depth": 0, // specify the maximum depth that blocks can be nested (off by default) "max-len": 0, // specify the maximum length of a line in your program (off by default) "max-params": 0, // limits the number of parameters that can be used in the function declaration. (off by default) "max-statements": 0, // specify the maximum number of statement allowed in a function (off by default) "no-bitwise": 0, // disallow use of bitwise operators (off by default) "no-plusplus": 0, // disallow use of unary operators, ++ and -- (off by default) ////////// Suggested by https://gist.github.com/cletusw/e01a85e399ab563b1236#gistcomment-1973905 ////////// "prefer-template": 1, "no-mixed-operators": 0, "object-shorthand": 1, "no-param-reassign": 1, "no-restricted-syntax": 1, "no-prototype-builtins": 0, "no-useless-escape": 1, "array-callback-return": 1, "one-var-declaration-per-line": 1 } }