.eslintrc.yaml

---
  parserOptions:
    ecmaVersion: 9
    sourceType: module
  env:
    es6: true
    browser: true
    node: true
    commonjs: true
  extends:
    - 'eslint:recommended'
    # - 'plugin:jmacs/all'
    # - 'plugin:elite/all'
  rules:

    # "Possible Errors"
    for-direction: error
    getter-return:
      - error
      - allowImplicit: true
    no-await-in-loop: off
    no-cond-assign:
      - error
      - except-parens
    no-console:
      - warn
      - allow:
        - time
        - warn
        - error
        - assert
    no-control-regex: off
    no-debugger:
      - warn
    no-empty:
      - error
      - allowEmptyCatch: true
    # no-extra-parens:
    #   - warn
    #   - all
    #   - nestedBinaryExpressions: false
    no-template-curly-in-string: warn
    valid-jsdoc:
      - warn
      - requireReturn: false
    valid-typeof:
      - error
      - requireStringLiterals: true

    # "Best Practices"
    # accessor-pairs:
    #   - warn
    #   - getWithoutSet: true
    array-callback-return: error
    class-methods-use-this: warn
    curly:
      - error
      - multi-line
      - consistent
    default-case: error
    dot-location:
      - error
      - property
    dot-notation: error
    eqeqeq: error
    no-caller: error
    no-extend-native: error
    no-extra-bind: error
    no-extra-label: warn
    no-implied-eval: error
    no-invalid-this: error
    no-iterator: error
    no-loop-func: error
    no-multi-spaces:
      - warn
      - ignoreEOLComments: true
    no-multi-str: error
    no-new: error
    no-new-func: error
    no-new-wrappers: error
    no-octal-escape: error
    no-proto: error
    # no-return-assign:
    #   - warn
    #   - except-parens
    no-script-url: error
    no-self-assign:
      - warn
    no-self-compare: error
    no-sequences: error
    no-throw-literal: error
    no-unmodified-loop-condition: error
    no-unused-expressions: error
    no-unused-labels: warn
    no-useless-call: error
    no-useless-concat: warn
    no-useless-escape: warn
    no-void: error
    no-warning-comments: warn
    no-with: error
    prefer-promise-reject-errors: warn
    require-await: error
    wrap-iife:
      - error
      - inside
    yoda:
      - warn
      - always
      - onlyEquality: true

    # "Variables"
    no-label-var: error
    no-restricted-globals: error
    no-shadow: error
    no-shadow-restricted-names: error
    no-undef-init: error
    no-undefined: error
    no-unused-vars: warn
    no-use-before-define:
      - error
      - classes: false
        variables: false
        functions: false

    # "Node.js and CommonJS"
    global-require: warn
    handle-callback-err:
      - warn
      - "^e_"
    no-buffer-constructor: error
    no-new-require: error
    no-path-concat: error
    
    # "Stylistic Issues"
    array-bracket-spacing:
      - error
      - never
    brace-style:
      - error
      - stroustrup
      - allowSingleLine: true
    # capitalized-comments:
    #   - warn
    #   - never
    #   - ignoreConsecutiveComments: true
    comma-dangle:
      - warn
      - always-multiline
    comma-spacing: error
    comma-style: error
    computed-property-spacing: error
    eol-last: error
    func-call-spacing: error
    # id-match:
    #   - warn
    #   - "^[a-z$]{1,4}(_[a-z0-9]+)?|[A-Z$]{1,4}_[A-Z0-9$]+$"
    implicit-arrow-linebreak: error
    indent:
      - warn
      - tab
      - SwitchCase: 1
        VariableDeclarator: 0
        ignoreComments: true
    key-spacing:
      - warn
      - singleLine:
          beforeColon: false
          afterColon: false
        multiLine:
          beforeColon: false
          afterColon: true
    keyword-spacing:
      - warn
      - overrides:
          if:
            after: false
          for:
            after: false
          while:
             after: false
          switch:
             after: false
          catch:
            after: false
    linebreak-style: error
    # lines-around-comment:
    #   - warn
    #   - beforeLineComment: true
    #     allowBlockStart: true
    #     allowClassStart: true
    #     allowObjectStart: true
    #     allowArrayStart: true
        # allowBeforeElse: true
    lines-between-class-members:
      - warn
      - always
      - exceptAfterSingleLine: true
    multiline-ternary:
      - warn
      - always-multiline
    new-cap:
      - error
      - newIsCap: false
        capIsNewExceptionPattern: "^[A-Z$_][A-Z$_0-9]*"
        capIsNew: true
        properties: false
    new-parens: error
    # newline-per-chained-call:
    #   - warn
    #   - ignoreChainWithDepth: 4
    no-array-constructor: error
    no-lonely-if: warn
    no-mixed-operators: warn
    no-mixed-spaces-and-tabs: warn
    no-multiple-empty-lines:
      - warn
      - max: 3
    # no-nested-ternary: error
    no-new-object: error
    # no-plusplus:
    #  - warn
    #  - allowForLoopAfterthoughts: true
    no-trailing-spaces: warn
    no-unneeded-ternary:
      - warn
      - defaultAssignment: false
    no-whitespace-before-property: error
    nonblock-statement-body-position: 
      - error
      - beside
    object-curly-newline:
      - off
      # - warn
      # - ObjectExpression:
      #     multiline: true
      #   ObjectPattern:
      #     multiline: true
    object-curly-spacing: warn
    object-property-newline:
      - warn
      - allowAllPropertiesOnSameLine: true
    one-var:
      - warn
      - initialized: never
    operator-assignment: warn
    operator-linebreak:
      - error
      - before
    padded-blocks:
      - warn
      - never
    # padding-line-between-statements
    quote-props:
      - warn
      - as-needed
    quotes:
      - warn
      - single
      - avoidEscape: true
        allowTemplateLiterals: true
    semi:
      - error
      - always
    semi-spacing:
      - warn
      - before: false
        after: true
    semi-style: error
    space-before-blocks:
      - warn
      - always
    space-before-function-paren:
      - warn
      - never
    space-in-parens:
      - warn
      - never
    space-unary-ops:
      - warn
      - words: true
        nonwords: false
    spaced-comment:
      - warn
      - always
      - exceptions:
        - "-*"
    switch-colon-spacing: warn
    template-tag-spacing: warn

    # "ECMAScript 6"
    arrow-body-style:
      - warn
      - as-needed
    arrow-parens:
      - warn
      - as-needed
      - requireForBlockBody: true
    arrow-spacing: warn
    generator-star-spacing:
      - warn
      - named: after
        anonymous: before
        method: after
    no-useless-computed-key: warn
    no-useless-constructor: warn
    no-var: error
    prefer-arrow-callback:
      - warn
      - allowNamedFunctions: true
    prefer-spread: warn
    # prefer-template: warn
    rest-spread-spacing: 
      - warn
      - never
    symbol-description: warn
    template-curly-spacing: warn
    yield-star-spacing: warn

    no-fallthrough: warn

    # Custom Rules
    

# unspecified:
  # padding-line-between-statements
  # array-bracket-newline
  # array-element-newline
  # camel-case