Created
July 24, 2015 08:44
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My ESLint configuration sample
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########################################################################### | |
# # | |
# 0 - turn the rule off # | |
# 1 - turn the rule on as a warning (doesn't affect exit code) # | |
# 2 - turn the rule on as an error (exit code is 1 when triggered) # | |
# # | |
# see http://eslint.org/docs/rules/ # | |
# # | |
########################################################################### | |
ecmaFeatures: | |
jsx: true | |
arrowFunctions: true | |
blockBindings: true | |
classes: true | |
defaultParams: true | |
destructuring: true | |
forOf: true | |
generators: true | |
modules: true | |
spread: true | |
superInFunctions: true | |
templateStrings: true | |
objectLiteralShorthandMethods: true | |
object-shorthand: true | |
env: | |
browser: true | |
globals: | |
_: true | |
L: true | |
$: true | |
CONFIG: true | |
React: true | |
ultima: true | |
module: true | |
moment: true | |
require: true | |
CommonUtils: true, | |
CurrentUserStore: true | |
wcDocker: true | |
rules: | |
########################################################################### | |
# # | |
# POSSIBLE ERRORS: these rules point out areas where you might have # | |
# made mistakes. # | |
# # | |
########################################################################### | |
comma-dangle: 2 # disallow trailing commas in object literals | |
no-cond-assign: 2 # disallow assignment in conditional expressions | |
no-console: 0 # disallow use of console | |
no-constant-condition: 2 # disallow use of constant expressions in conditions | |
no-control-regex: 2 # disallow control characters in regular expressions | |
no-debugger: 1 # disallow use of debugger | |
no-dupe-args: 2 # disallow duplicate arguments in functions | |
no-dupe-keys: 2 # disallow duplicate keys when creating object literals | |
no-empty: 2 # disallow empty statements | |
no-empty-class: 2 # disallow the use of empty character classes in regular expressions | |
no-ex-assign: 2 # disallow assigning to the exception in a catch block | |
no-extra-boolean-cast: 2 # disallow double-negation boolean casts in a boolean context | |
no-extra-parens: 0 # disallow unnecessary parentheses | |
# NOTE: Allow for `return (/* JSX STUFF*/);` situations | |
no-extra-semi: 2 # disallow unnecessary semicolons | |
no-func-assign: 2 # disallow overwriting functions written as function declarations | |
no-inner-declarations: 0 # disallow function or variable declarations in nested blocks | |
no-invalid-regexp: 2 # disallow invalid regular expression strings in the RegExp | |
# constructor | |
no-irregular-whitespace: 0 # disallow irregular whitespace outside of strings and comments | |
no-negated-in-lhs: 2 # disallow negation of the left operand of an in expression | |
no-obj-calls: 2 # 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 | |
no-reserved-keys: 1 # disallow reserved words being used as object literal keys | |
no-sparse-arrays: 2 # disallow sparse arrays | |
no-unreachable: 2 # disallow unreachable statements after a return, throw, continue, | |
# or break statement | |
use-isnan: 2 # disallow comparisons with the value NaN | |
valid-typeof: 2 # ensure that the results of typeof are compared against a | |
# valid string | |
########################################################################### | |
# # | |
# BEST PRACTICES: these rules are designed to prevent you from making # | |
# mistakes. They either prescribe a better way of doing something or # | |
# help you avoid pitfalls. # | |
# # | |
########################################################################### | |
block-scoped-var: 0 # treat var statements as if they were block scoped | |
complexity: [1, 250] # specify the maximum cyclomatic complexity allowed in a program | |
consistent-return: 0 # 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-notation: 0 # encourages use of dot notation whenever possible | |
eqeqeq: 0 # require the use of === and !== | |
guard-for-in: 1 # 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: 1 # disallow division operators explicitly at beginning of regular | |
# expression | |
no-else-return: 1 # disallow else after a return in an if | |
no-empty-label: 2 # disallow use of labels for anything other then loops and switches | |
no-eq-null: 2 # disallow comparisons to null without a type-checking operator | |
no-eval: 0 # disallow use of eval() | |
no-extend-native: 0 # disallow adding to native types | |
no-extra-bind: 2 # disallow unnecessary function binding | |
no-fallthrough: 2 # disallow fallthrough of case statements | |
no-floating-decimal: 2 # disallow the use of leading or trailing decimal points in numeric | |
# literals | |
no-implied-eval: 2 # disallow use of eval()-like methods | |
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: 1 # disallow creation of functions within loops | |
no-multi-spaces: 0 # disallow use of multiple spaces | |
no-multi-str: 2 # disallow use of multiline strings | |
no-native-reassign: 2 # disallow reassignments of native objects | |
no-new: 0 # disallow use of new operator when not part of the assignment or | |
# comparison | |
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-octal: 0 # disallow use of octal literals | |
no-octal-escape: 0 # disallow use of octal escape sequences in string literals, such as | |
# `var foo = "Copyright \251"` | |
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 then once | |
no-return-assign: 1 # disallow use of assignment in return statement | |
no-script-url: 0 # disallow use of javascript urls. | |
no-self-compare: 2 # disallow comparisons where both sides are exactly the same | |
no-sequences: 2 # disallow use of comma operator | |
no-unused-expressions: 1 # disallow usage of expressions in statement position | |
no-void: 2 # disallow use of void operator | |
no-warning-comments: 0 # disallow usage of configurable warning terms in comments - e.g. | |
# TODO or FIXME | |
no-with: 2 # disallow use of the with statement | |
radix: 0 # require use of the second argument for parseInt() | |
vars-on-top: 0 # requires to declare all vars on top of their containing scope | |
wrap-iife: [2, "inside"] # require immediate function invocation to be wrapped in parentheses | |
########################################################################### | |
# # | |
# STRICT MODE: these rules relate to using strict mode. # | |
# /true # | |
########################################################################### | |
global-strict: [2, "always"] # require or disallow the "use strict" pragma in the global scope | |
no-extra-strict: 2 # disallow use of "use strict" when already in strict mode | |
strict: 0 # require that all functions are run in strict mode | |
########################################################################### | |
# # | |
# VARIABLES: these rules have to do with variable declarations. # | |
# # | |
########################################################################### | |
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 | |
no-label-var: 2 # disallow labels that share a name with a variable | |
no-shadow: 0 # disallow declaration of variables already declared in the | |
# outer scope | |
no-shadow-restricted-names: 2 # disallow shadowing of names such as arguments | |
no-undef: 2 # disallow use of undeclared variables unless mentioned in a | |
# /*global */ block | |
no-undef-init: 2 # disallow use of undefined when initializing variables | |
no-undefined: 0 # disallow use of undefined variable | |
no-unused-vars: 0 # disallow declaration of variables that are not used in | |
# the code | |
no-use-before-define: 2 # disallow use of variables before they are defined | |
########################################################################### | |
# # | |
# NODE: these rules relate to functionality provided in Node.js. # | |
# # | |
########################################################################### | |
# handle-callback-err: 0 # enforces error handling in callbacks | |
# no-mixed-requires: [1, true] # 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: 0 # disallow process.exit() | |
# no-restricted-modules: 0 # restrict usage of specified node modules | |
# no-sync: 0 # disallow use of synchronous methods | |
########################################################################### | |
# # | |
# STYLISTIC ISSUES: these rules are purely matters of style and, # | |
# while valueable to enforce consistently across a project, are # | |
# quite subjective. # | |
# # | |
########################################################################### | |
brace-style: 0 # enforce one true brace style | |
camelcase: 0 # require camel case names | |
comma-spacing: # enforce spacing before and after comma | |
[2, {"before": false, "after": true}] | |
comma-style: 2 # enforce one true comma style | |
consistent-this: [0, "that"] # enforces consistent naming when capturing the current execution context | |
eol-last: 0 # enforce newline at the end of file, with no multiple empty lines | |
func-names: 0 # require function expressions to have a name | |
func-style: 0 # enforces use of function declarations or expressions | |
key-spacing: 0 # enforces spacing between keys and values in object literal properties | |
max-nested-callbacks: [1, 4] # specify the maximum depth callbacks can be nested | |
new-cap: 0 # require a capital letter for constructors | |
new-parens: 2 # disallow the omission of parentheses when invoking a constructor with no arguments | |
no-array-constructor: 2 # disallow use of the Array constructor | |
no-lonely-if: 0 # disallow if as the only statement in an else block | |
no-mixed-spaces-and-tabs: 1 # disallow mixed spaces and tabs for indentation | |
no-nested-ternary: 0 # disallow nested ternary expressions | |
no-new-object: 1 # disallow use of the Object constructor | |
no-space-before-semi: 2 # disallow space before semicolon | |
no-spaced-func: 2 # disallow space between function identifier and application | |
no-ternary: 0 # disallow the use of ternary operators | |
no-trailing-spaces: 0 # disallow trailing whitespace at the end of lines | |
no-multiple-empty-lines: 2 # disallow multiple empty lines | |
no-underscore-dangle: 0 # disallow dangling underscores in identifiers | |
no-wrap-func: 0 # disallow wrapping of non-IIFE statements in parens | |
one-var: 0 # allow just one var statement per function | |
padded-blocks: 0 # enforce padding within blocks | |
quotes: # specify whether double or single quotes should be used | |
[0, "single", "avoid-escape"] | |
quote-props: 0 # require quotes around object literal property names | |
semi: [2, "always"] # require or disallow use of semicolons instead of ASI | |
sort-vars: 0 # sort variables within the same declaration block | |
space-before-blocks: 2 # require or disallow space before blocks | |
space-in-brackets: 0 # require or disallow spaces inside brackets | |
space-in-parens: 0 # require or disallow spaces inside parentheses | |
space-infix-ops: 2 # require spaces around operators | |
space-return-throw-case: 2 # require a space after return, throw, and case | |
spaced-line-comment: 2 # require or disallow a space immediately following | |
# the // in a line comment | |
wrap-regex: 0 # require regex literals to be wrapped in parentheses | |
########################################################################### | |
# # | |
# ECMAScript 6 # | |
# # | |
########################################################################### | |
no-var: 2 # require let or const instead of var | |
########################################################################### | |
# # | |
# LEGACY: these rules are included for compatibility with JSHint and # | |
# JSLint. While the names of the rules may not match up with their # | |
# JSHint/JSLint counterpart, the functionality is the same. # | |
# # | |
########################################################################### | |
max-depth: 0 # specify the maximum depth that blocks can be nested | |
max-len: 0 # specify the maximum length of a line in your program | |
max-params: [1, 3] # limits the number of parameters that can be used in the function | |
# declaration | |
max-statements: 0 # specify the maximum number of statement allowed in a function | |
no-bitwise: 0 # disallow use of bitwise operators | |
no-plusplus: 0 # disallow use of unary operators, ++ and -- |
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