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1{
2 // http://eslint.org/docs/rules/
3
4 "ecmaFeatures": {
5 "binaryLiterals": false, // enable binary literals
6 "blockBindings": false, // enable let and const (aka block bindings)
7 "defaultParams": false, // enable default function parameters
8 "forOf": false, // enable for-of loops
9 "generators": false, // enable generators
10 "objectLiteralComputedProperties": false, // enable computed object literal property names
11 "objectLiteralDuplicateProperties": false, // enable duplicate object literal properties in strict mode
12 "objectLiteralShorthandMethods": false, // enable object literal shorthand methods
13 "objectLiteralShorthandProperties": false, // enable object literal shorthand properties
14 "octalLiterals": false, // enable octal literals
15 "regexUFlag": false, // enable the regular expression u flag
16 "regexYFlag": false, // enable the regular expression y flag
17 "templateStrings": false, // enable template strings
18 "unicodeCodePointEscapes": false, // enable code point escapes
19 "jsx": false // enable JSX
20 },
21
22 "env": {
23 "browser": false, // browser global variables.
24 "node": true, // Node.js global variables and Node.js-specific rules.
25 "amd": false, // defines require() and define() as global variables as per the amd spec.
26 "mocha": false, // adds all of the Mocha testing global variables.
27 "jasmine": false, // adds all of the Jasmine testing global variables for version 1.3 and 2.0.
28 "phantomjs": false, // phantomjs global variables.
29 "jquery": false, // jquery global variables.
30 "prototypejs": false, // prototypejs global variables.
31 "shelljs": false // shelljs global variables.
32 },
33
34 "globals": {
35 // e.g. "angular": true
36 },
37
38 "plugins": [
39 // e.g. "react" (must run `npm install eslint-plugin-react` first)
40 ],
41
42 "rules": {
43 ////////// Possible Errors //////////
44
45 "comma-dangle": 2, // disallow trailing commas in object literals
46 "no-cond-assign": 2, // disallow assignment in conditional expressions
47 "no-console": 2, // disallow use of console (off by default in the node environment)
48 "no-constant-condition": 2, // disallow use of constant expressions in conditions
49 "no-control-regex": 2, // disallow control characters in regular expressions
50 "no-debugger": 2, // disallow use of debugger
51 "no-dupe-keys": 2, // disallow duplicate keys when creating object literals
52 "no-empty": 2, // disallow empty statements
53 "no-empty-character-class": 2, // disallow the use of empty character classes in regular expressions
54 "no-ex-assign": 2, // disallow assigning to the exception in a catch block
55 "no-extra-boolean-cast": 2, // disallow double-negation boolean casts in a boolean context
56 "no-extra-parens": 2, // disallow unnecessary parentheses (off by default)
57 "no-extra-semi": 2, // disallow unnecessary semicolons
58 "no-func-assign": 2, // disallow overwriting functions written as function declarations
59 "no-inner-declarations": 2, // disallow function or variable declarations in nested blocks
60 "no-invalid-regexp": 2, // disallow invalid regular expression strings in the RegExp constructor
61 "no-irregular-whitespace": 2, // disallow irregular whitespace outside of strings and comments
62 "no-negated-in-lhs": 2, // disallow negation of the left operand of an in expression
63 "no-obj-calls": 2, // disallow the use of object properties of the global object (Math and JSON) as functions
64 "no-regex-spaces": 2, // disallow multiple spaces in a regular expression literal
65 "no-sparse-arrays": 2, // disallow sparse arrays
66 "no-unreachable": 2, // disallow unreachable statements after a return, throw, continue, or break statement
67 "use-isnan": 2, // disallow comparisons with the value NaN
68 "valid-jsdoc": 2, // Ensure JSDoc comments are valid (off by default)
69 "valid-typeof": 2, // Ensure that the results of typeof are compared against a valid string
70
71
72 ////////// Best Practices //////////
73
74 "block-scoped-var": 2, // treat var statements as if they were block scoped (off by default)
75 "complexity": 0, // specify the maximum cyclomatic complexity allowed in a program (off by default)
76 "consistent-return": 2, // require return statements to either always or never specify values
77 "curly": 2, // specify curly brace conventions for all control statements
78 "default-case": 2, // require default case in switch statements (off by default)
79 "dot-notation": 0, // encourages use of dot notation whenever possible
80 "eqeqeq": 2, // require the use of === and !==
81 "guard-for-in": 2, // make sure for-in loops have an if statement (off by default)
82 "no-alert": 1, // disallow the use of alert, confirm, and prompt
83 "no-caller": 2, // disallow use of arguments.caller or arguments.callee
84 "no-div-regex": 2, // disallow division operators explicitly at beginning of regular expression (off by default)
85 "no-else-return": 2, // disallow else after a return in an if (off by default)
86 "no-empty-label": 2, // disallow use of labels for anything other then loops and switches
87 "no-eq-null": 2, // disallow comparisons to null without a type-checking operator (off by default)
88 "no-eval": 2, // disallow use of eval()
89 "no-extend-native": 2, // disallow adding to native types
90 "no-extra-bind": 2, // disallow unnecessary function binding
91 "no-fallthrough": 2, // disallow fallthrough of case statements
92 "no-floating-decimal": 2, // disallow the use of leading or trailing decimal points in numeric literals (off by default)
93 "no-implied-eval": 2, // disallow use of eval()-like methods
94 "no-iterator": 2, // disallow usage of __iterator__ property
95 "no-labels": 0, // disallow use of labeled statements
96 "no-lone-blocks": 2, // disallow unnecessary nested blocks
97 "no-loop-func": 2, // disallow creation of functions within loops
98 "no-multi-spaces": 0, // disallow use of multiple spaces
99 "no-multi-str": 2, // disallow use of multiline strings
100 "no-native-reassign": 2, // disallow reassignments of native objects
101 "no-new": 2, // disallow use of new operator when not part of the assignment or comparison
102 "no-new-func": 2, // disallow use of new operator for Function object
103 "no-new-wrappers": 2, // disallows creating new instances of String, Number, and Boolean
104 "no-octal": 2, // disallow use of octal literals
105 "no-octal-escape": 2, // disallow use of octal escape sequences in string literals, such as var foo = "Copyright \251";
106 "no-process-env": 0, // disallow use of process.env (off by default)
107 "no-proto": 2, // disallow usage of __proto__ property
108 "no-redeclare": 2, // disallow declaring the same variable more then once
109 "no-return-assign": 2, // disallow use of assignment in return statement
110 "no-script-url": 2, // disallow use of javascript: urls.
111 "no-self-compare": 2, // disallow comparisons where both sides are exactly the same (off by default)
112 "no-sequences": 2, // disallow use of comma operator
113 "no-unused-expressions": 2, // disallow usage of expressions in statement position
114 "no-void": 2, // disallow use of void operator (off by default)
115 "no-warning-comments": 1, // disallow usage of configurable warning terms in comments, e.g. TODO or FIXME (off by default)
116 "no-with": 2, // disallow use of the with statement
117 "radix": 0, // require use of the second argument for parseInt() (off by default)
118 "vars-on-top": 0, // requires to declare all vars on top of their containing scope (off by default)
119 "wrap-iife": 2, // require immediate function invocation to be wrapped in parentheses (off by default)
120 "yoda": 2, // require or disallow Yoda conditions
121
122
123 ////////// Strict Mode //////////
124
125 "strict": 0, // controls location of Use Strict Directives
126
127
128 ////////// Variables //////////
129
130 "no-catch-shadow": 0, // disallow the catch clause parameter name being the same as a variable in the outer scope (off by default in the node environment)
131 "no-delete-var": 2, // disallow deletion of variables
132 "no-label-var": 2, // disallow labels that share a name with a variable
133 "no-shadow": 0, // disallow declaration of variables already declared in the outer scope
134 "no-shadow-restricted-names": 2, // disallow shadowing of names such as arguments
135 "no-undef": 2, // disallow use of undeclared variables unless mentioned in a /*global */ block
136 "no-undef-init": 2, // disallow use of undefined when initializing variables
137 "no-undefined": 0, // disallow use of undefined variable (off by default)
138 "no-unused-vars": 2, // disallow declaration of variables that are not used in the code
139 "no-use-before-define": 2, // disallow use of variables before they are defined
140
141
142 ////////// Node.js //////////
143
144 "callback-return": 2, // enforce return after a callback
145 "handle-callback-err": 2, // enforces error handling in callbacks (off by default) (on by default in the node environment)
146 "no-mixed-requires": 0, // disallow mixing regular variable and require declarations (off by default) (on by default in the node environment)
147 "no-new-require": 0, // disallow use of new operator with the require function (off by default) (on by default in the node environment)
148 "no-path-concat": 0, // disallow string concatenation with __dirname and __filename (off by default) (on by default in the node environment)
149 "no-process-exit": 0, // disallow process.exit() (on by default in the node environment)
150 "no-restricted-modules": 0, // restrict usage of specified node modules (off by default)
151 "no-sync": 0, // disallow use of synchronous methods (off by default)
152
153
154 ////////// Stylistic Issues //////////
155
156 "array-bracket-spacing": 0, // enforce spacing inside array brackets
157 "block-spacing": [2, "always"], // disallow or enforce spaces inside of single line blocks
158 "brace-style": 2, // enforce one true brace style (off by default)
159 "camelcase": 2, // require camel case names
160 "comma-spacing": 2, // enforce spacing before and after comma
161 "comma-style": 2, // enforce one true comma style (off by default)
162 "consistent-this": [2, "self"], // enforces consistent naming when capturing the current execution context (off by default)
163 "eol-last": 2, // enforce newline at the end of file, with no multiple empty lines
164 "func-names": 0, // require function expressions to have a name (off by default)
165 "func-style": 0, // enforces use of function declarations or expressions (off by default)
166 "id-length": 0, // this option enforces minimum and maximum identifier lengths (variable names, property names etc.)
167 "id-match": 0, // require identifiers to match the provided regular expression
168 "indent": [2, 2], // specify tab or space width for your code
169 "key-spacing": 2, // enforces spacing between keys and values in object literal properties
170 "lines-around-comment": 2, // enforce empty lines around comments
171 "linebreak-style": 2, // disallow mixed 'LF' and 'CRLF' as linebreaks
172 "max-nested-callbacks": [2, 3], // specify the maximum depth callbacks can be nested (off by default)
173 "new-cap": 2, // require a capital letter for constructors
174 "new-parens": 2, // disallow the omission of parentheses when invoking a constructor with no arguments
175 "newline-after-var": 0, // require or disallow an empty newline after variable declarations
176 "no-array-constructor": 2, // disallow use of the Array constructor
177 "no-continue": 2, // disallow use of the continue statement
178 "no-inline-comments": 0, // disallow comments inline after code (off by default)
179 "no-lonely-if": 2, // disallow if as the only statement in an else block (off by default)
180 "no-mixed-spaces-and-tabs": 2, // disallow mixed spaces and tabs for indentation
181 "no-multiple-empty-lines": [2, {"max": 2}], // disallow multiple empty lines (off by default)
182 "no-nested-ternary": 2, // disallow nested ternary expressions (off by default)
183 "no-new-object": 2, // disallow use of the Object constructor
184 "no-spaced-func": 2, // disallow space between function identifier and application
185 "no-ternary": 0, // disallow the use of ternary operators (off by default)
186 "no-trailing-spaces": 0, // disallow trailing whitespace at the end of lines
187 "no-underscore-dangle": 0, // disallow dangling underscores in identifiers
188 "no-unneeded-ternary": 2, // disallow the use of Boolean literals in conditional expressions
189 "object-curly-spacing": 0, // require or disallow padding inside curly braces
190 "one-var": 0, // allow just one var statement per function (off by default)
191 "operator-assignment": [2, "always"], // require assignment operator shorthand where possible or prohibit it entirely (off by default)
192 "operator-linebreak": 0, // enforce operators to be placed before or after line breaks
193 "padded-blocks": 0, // enforce padding within blocks (off by default)
194 "quote-props": 2, // require quotes around object literal property names (off by default)
195 "quotes": [2, "single"], // specify whether double or single quotes should be used
196 "semi": [2, "always"], // require or disallow use of semicolons instead of ASI
197 "semi-spacing": 2, // enforce spacing before and after semicolons
198 "sort-vars": 0, // sort variables within the same declaration block (off by default)
199 "space-after-keywords": 2, // require a space after certain keywords (off by default)
200 "space-before-blocks": 2, // require or disallow space before blocks (off by default)
201 "space-before-function-paren": 0, // require or disallow a space before function opening parenthesis
202 "space-in-parens": 2, // require or disallow spaces inside parentheses (off by default)
203 "space-infix-ops": 2, // require spaces around operators
204 "space-return-throw-case": 2, // require a space after return, throw, and case
205 "space-unary-ops": 2, // Require or disallow spaces before/after unary operators (words on by default, nonwords off by default)
206 "spaced-comment": 2, // require or disallow a space immediately following the // or /* in a comment
207 "wrap-regex": 2, // require regex literals to be wrapped in parentheses (off by default)
208
209
210 ////////// ECMAScript 6 //////////
211
212 "no-var": 0, // require let or const instead of var (off by default)
213
214
215 ////////// Legacy //////////
216
217 "max-depth": 0, // specify the maximum depth that blocks can be nested (off by default)
218 "max-len": 0, // specify the maximum length of a line in your program (off by default)
219 "max-params": 0, // limits the number of parameters that can be used in the function declaration. (off by default)
220 "max-statements": 0, // specify the maximum number of statement allowed in a function (off by default)
221 "no-bitwise": 0, // disallow use of bitwise operators (off by default)
222 "no-plusplus": 0 // disallow use of unary operators, ++ and -- (off by default)
223 }
224}