.eslintrc.yml

env:
  node: true
  es6: false
  mocha: true
parserOptions:
  ecmaVersion: 2017
  ecmaFeatures:
    arrowFunctions: true
    blockBindings: true
    classes: true
    defaultParams: true
    destructuring: true
    experimentalObjectRestSpread: true
    forOf: true
    generators: false
    modules: true
    objectLiteralComputedProperties: true
    objectLiteralDuplicateProperties: false
    objectLiteralShorthandMethods: true
    objectLiteralShorthandProperties: true
    spread: true
    superInFunctions: true
    templateStrings: true
    jsx: false
rules:
  # Possible Errors
  "comma-dangle": 0
  "no-cond-assign": 2
  "no-console": 0
  "no-constant-condition": 2
  "no-control-regex": 0
  "no-debugger": 2
  "no-dupe-args": 2
  "no-dupe-keys": 2
  "no-duplicate-case": 2
  "no-empty-character-class": 2
  "no-empty": 2
  "no-ex-assign": 2
  "no-extra-boolean-cast": 2
  "no-extra-parens":
    - 2
    - functions
  "no-extra-semi": 2
  "no-func-assign": 2
  "no-inner-declarations": 0
  "no-invalid-regexp": 2
  "no-irregular-whitespace": 2
  "no-negated-in-lhs": 2
  "no-obj-calls": 2
  "no-regex-spaces": 0
  "no-reserved-keys": 0
  "no-sparse-arrays": 2
  "no-unreachable": 2
  "use-isnan": 2
  "valid-jsdoc": 0
  "valid-typeof": 2
  "no-unexpected-multiline": 2

  # Best Practices
  "array-callback-return": 2
  "block-scoped-var": 2
  curly: 0
  "default-case": 2
  "dot-notation": 2
  "dot-location":
    - 2
    - property
  eqeqeq: 2
  "no-caller": 2
  "no-else-return": 0
  "no-eq-null": 2
  "no-eval": 2
  "no-extend-native": 2
  "no-fallthrough": 2
  "no-floating-decimal": 2
  "no-loop-func": 2
  "no-multi-spaces": 2
  "no-multi-str": 2
  "no-proto": 2
  "no-redeclare":
    - 2
    - builtinGlobals: false
  "no-return-assign": 2
  "no-unmodified-loop-condition": 2
  "no-unused-expressions": 2
  "no-void": 2

  # Strict Mode
  strict:
    - 2
    - never

  # Variables
  "no-undef-init": 2
  # "no-undef": 2
  "no-unused-vars": 2
  "no-use-before-define":
    - 2
    - nofunc

  # Node.js and Common.js
  "no-mixed-requires": 2
  "no-new-require": 2

  # Stylistic Issues,
  "block-spacing": 2
  # camelcase:
  #   - 2
  #   - properties: never
  "comma-spacing":
    - 2
    - before: false
      after: true
  "comma-style":
    - 2
    - last
  "computed-property-spacing":
    - 2
    - never
  "eol-last": 0
  indent:
    - 2
    - 2
    - SwitchCase: 1
  "key-spacing":
    - 2
    - beforeColon: false
      afterColon: true
  "linebreak-style":
    - 2
    - unix
  "max-nested-callbacks":
    - 2
    - 10
  "new-cap": 0
  "new-parens": 2
  "no-multiple-empty-lines":
    - 2
    - max: 2
  "no-nested-ternary": 2
  "no-spaced-func": 2
  "no-ternary": 0
  "no-trailing-spaces": 2
  # "no-unneeded-ternary": 2
  "no-whitespace-before-property": 2
  "object-curly-spacing":
    - 2
    - never
  "operator-linebreak":
    - 2
    - after
  "quote-props":
    - 2
    - "as-needed"
  quotes:
    - 2
    - single
    - "avoid-escape"
  semi: 2
  "semi-spacing": 2
  "keyword-spacing": 2
  "space-before-blocks":
    - 2
    - always
  # "space-before-function-paren":
  #   - 2
  #   - anonymous: never
  #     named: never
  #     asyncArrow: always
  "space-in-parens":
    - 2
    - never
  "space-infix-ops": 0
  "space-unary-ops": 2

  # ECMAScript 6
  "arrow-parens": 0
  "arrow-spacing": 2
  "constructor-super": 2
  "generator-star-spacing":
    - 2
    - before: false
      after: true
  "no-class-assign": 2
  "no-confusing-arrow": 2
  "no-const-assign": 2
  "no-dupe-class-members": 2
  #"no-var": 2,
  #"object-shorthand": 2,
  #"prefer-arrow-callback": 1,
  #"prefer-const": 1,
  #"prefer-spread": 1,
  # "prefer-template": 1
  "template-curly-spacing": 2