.eslint.yaml

root: true

parserOptions:
  ecmaVersion: 5
  sourceType: script
  ecmaFeatures:
    globalReturn: false
    impliedStrict: false
    jsx: false

env:
  browser: true
  jquery: true
  mongo: true
  node: true

plugins:
  - html

extends: eslint:recommended

rules:
  # eslint:recommended
  no-cond-assign:
    - warn
    - always
  no-constant-condition:
    - warn
    - checkLoops: false
  no-mixed-spaces-and-tabs: warn
  no-redeclare:
    - error
    - builtinGlobals: true

	# others
  accessor-pairs: error
  array-bracket-spacing: error
  array-callback-return: error
  block-scoped-var: error
  block-spacing: error
  brace-style:
    - error
    - 1tbs
    - allowSingleLine: true
  callback-return: error
  camelcase:
    - error
    - properties: never
  comma-dangle:
    - error
    - always-multiline
  comma-spacing:
    - error
    - before: false
      after: true
  comma-style:
    - error
    - last
  complexity:
    - error
    - max: 15
  computed-property-spacing: error
  consistent-return: error
  curly:
    - error
    - multi-line
  default-case: error
  dot-notation:
    - error
    - allowKeywords: true
  eol-last: error
  eqeqeq: error
  func-call-spacing: error
  func-name-matching: error
  func-names: warn
  func-style:
		# Change following to "error" after 210
    - off
    - expression
  global-require: error
  guard-for-in: error
  handle-callback-err: error
  id-length:
    - error
    - min: 1
      exceptions:
        - a
        - b
        - i
        - j
        - x
        - y
        - z
  indent:
    - error
    - 2
    - FunctionExpression:
        parameters: first
        body: 1
      CallExpression:
        arguments: first
        body: 1
  jsx-quotes:
    - error
    - prefer-double
  key-spacing:
    - error
    - multiLine:
        mode: minimum
      singleLine:
        mode: strict
  keyword-spacing: error
  line-comment-position: error
  linebreak-style: error
  max-depth:
    - error
    - max: 4
  max-len:
    - error
    - tabWidth: 2
      ignoreTrailingComments: true
      ignoreUrls: true
      ignoreStrings: true
      ignoreTemplateLiterals: true
  max-nested-callbacks:
    - error
    - max: 3
  max-params:
    - error
    - max: 3
  max-statements:
    - error
    - max: 15
  max-statements-per-line:
    - error
    - max: 1
  multiline-ternary:
    - error
    - never
  new-cap:
    - error
    - newIsCap: true
  new-parens: error
  newline-per-chained-call: error
  no-array-constructor: error
  no-bitwise: error
  no-caller: error
  no-catch-shadow: error
  no-div-regex: error
  no-else-return: off
  no-eq-null: error
  no-eval: error
  no-extend-native: error
  no-extra-bind: error
  no-extra-label: error
  no-extra-parens:
    - error
    - functions
  no-floating-decimal: error
  no-global-assign: error
  no-implicit-coercion: error
  no-implied-eval: error
  no-invalid-this: error
  no-iterator: error
  no-label-var: error
  no-labels: error
  no-lone-blocks: error
  no-lonely-if: warn
  no-loop-func: error
  no-magic-numbers: off
  no-mixed-operators: error
  no-multiple-empty-lines:
    - error
    - max: 2
  no-multi-str: error
  no-nested-ternary: error
  no-new: error
  no-new-func: error
  no-new-object: error
  no-new-require: error
  no-new-wrappers: error
  no-octal-escape: error
  no-param-reassign: error
  no-path-concat: error
  no-process-env: error
  no-process-exit: error
  no-proto: error
  no-prototype-builtins: error
  no-restricted-globals:
    - error
    - event
  no-return-assign: error
  no-return-await: error
  no-script-url: error
  no-self-compare: error
  no-sequences: error
  no-shadow:
    - error
    - builtinGlobals: true
  no-shadow-restricted-names: error
  no-sync: error
  no-tabs: error
  no-throw-literal: error
  no-trailing-spaces: error
  no-undef-init: error
  no-undefined: warn
  no-underscore-dangle: error
  no-unmodified-loop-condition: error
  no-unneeded-ternary: error
  no-unsafe-negation: error
  no-unused-expressions: error
  no-unused-vars:
    - error
    - vars: local
      args: after-used
  no-use-before-define: error
  no-useless-call: error
  no-useless-concat: error
  no-useless-escape: error
  no-useless-return: error
  no-void: error
  no-whitespace-before-property: error
  no-with: error
  object-curly-newline: error
  object-curly-spacing:
    - error
    - always
  object-property-newline:
    - error
    - allowMultiplePropertiesPerLine: true
  one-var:
    - error
    - never
  one-var-declaration-per-line: error
  padded-blocks:
    - error
    - never
  prefer-const: error
  quote-props:
    - error
    - as-needed
  quotes:
    - error
    - single
    - avoidEscape: true
  radix: error
  semi:
    - error
    - always
    - omitLastInOneLineBlock: true
  semi-spacing:
    - error
    - before: false
      after: true
  space-before-blocks: error
  space-before-function-paren:
    - error
    - anonymous: always
      named: never
      asyncArrow: always
  space-in-parens: error
  space-infix-ops: error
  space-unary-ops:
    - error
    - words: true
      nonwords: false
  spaced-comment:
    - error
    - always
    - line:
        exceptions:
          - '-'
          - '+'
          - '='
          - '_'
          - '*'
        markers:
          - '='
          - '!'
      block:
        exceptions:
          - '-'
          - '+'
          - '='
          - '_'
          - '*'
        markers:
          - '='
          - '!'
        balanced: true
  vars-on-top: error
  wrap-iife:
    - error
    - outside
  yoda:
    - error