.eslintrc.yml

---
root: true

parserOptions:
  ecmaVersion: 6
  sourceType: module

env:
    node: true

rules:
    ### Possible Errors ###

    comma-dangle:
        - error
        - always-multiline
    no-cond-assign: error
    no-console: off
    no-constant-condition: error
    no-control-regex: error
    no-debugger: error
    no-dupe-keys: error
    no-empty: error
    no-empty-character-class: error
    no-ex-assign: error
    no-extra-boolean-cast: error
    no-extra-parens:
        - error
        - functions
    no-extra-semi: error
    no-func-assign: error
    no-inner-declarations:
        - error
        - functions
    no-invalid-regexp: error
    no-irregular-whitespace: error
    no-negated-in-lhs: error
    no-obj-calls: error
    no-regex-spaces: error
    no-sparse-arrays: error
    no-unreachable: error
    use-isnan: error
    valid-jsdoc: off
    valid-typeof: error


    ### Best Practices ###

    block-scoped-var: error
    complexity:
        - 1
        - 10
    consistent-return: off
    curly:
        - error
        - all
    default-case: error
    dot-notation: error
    eqeqeq:
        - error
        - allow-null
    guard-for-in: off
    no-alert: error
    no-caller: error
    no-div-regex: off
    no-else-return: error
    no-eq-null: off
    no-eval: error
    no-extend-native: error
    no-extra-bind: error
    no-fallthrough: error
    no-floating-decimal: error
    no-implied-eval: error
    no-iterator: error
    no-labels: error
    no-lone-blocks: error
    no-loop-func: error
    no-multi-spaces: error
    no-multi-str: error
    no-native-reassign: error
    no-new: error
    no-new-func: error
    no-new-wrappers: error
    no-octal: error
    no-octal-escape: error
    no-process-env: off
    no-proto: error
    no-redeclare: error
    no-return-assign: error
    no-script-url: off
    no-self-compare: error
    no-sequences: error
    no-unused-expressions: error
    no-void: off
    no-warning-comments: off
    no-with: error
    radix: error
    vars-on-top: off
    wrap-iife:
        - error
        - any
    yoda:
        - error
        - never


    ### Variables ###

    no-catch-shadow: off
    no-delete-var: error
    no-label-var: error
    no-shadow: off
    no-shadow-restricted-names: error
    no-undef: error
    no-undef-init: error
    no-unused-vars:
        - error
        - { vars: all, args: after-used }
    no-use-before-define: off
    prefer-const: error
    no-var: error


    ### Node.js ###

    no-path-concat: off
    no-process-exit: off
    no-restricted-modules: off
    no-sync: off


    ### Requires ###

    global-require: off
    no-new-require: error
    no-mixed-requires: error

    ### Stylistic Issues ###

    block-spacing:
        - error
        - always
    brace-style:
        - error
        - 1tbs
        - allowSingleLine: true
    camelcase: error
    comma-spacing:
        - error
        - before: false
          after: true
    comma-style:
        - error
        - last
    consistent-this:
        - error
        - vm
    eol-last: off
    func-names: off
    func-style: off
    key-spacing:
        - error
        - { beforeColon: false, afterColon: true }
    max-len:
        - 0
        - 120
    max-statements:
        - 0
        - 20
    max-lines: off
    new-cap:
        - error
        - { newIsCap: true, capIsNew: false }
    new-parens: error
    no-array-constructor: error
    no-inline-comments: off
    no-lonely-if: error
    no-mixed-spaces-and-tabs: error
    no-multiple-empty-lines:
        - error
        - max: 1
    no-nested-ternary: error
    no-new-object: error
    no-spaced-func: error
    no-ternary: off
    no-trailing-spaces: error
    no-underscore-dangle: off
    one-var:
        - error
        - never
    operator-assignment: off
    padded-blocks:
        - error
        - never
    quote-props:
        - error
        - as-needed
    quotes:
        - error
        - single
        - avoid-escape
    semi:
        - error
        - always
    sort-vars: off
    space-before-blocks:
        - error
        - always
    space-in-parens:
        - error
        - never
    space-infix-ops: error
    space-unary-ops:
        - error
        - { words: true, nonwords: false }
    object-curly-spacing:
        - error
        - always
    array-bracket-spacing:
        - error
        - never
    computed-property-spacing:
        - error
        - never
    wrap-regex: off
    indent:
        - error
        - 4
        - SwitchCase: 1
    semi-spacing:
        - error
        - { before: false, after: true }
    space-before-function-paren:
        - error
        - { anonymous: always, named: never }
    spaced-comment:
        - error
        - always
        - markers:
            - global
            - globals
            - eslint
            - eslint-disable
            - "*package"
            - "!"
            - ","
    keyword-spacing: error
    accessor-pairs: error
    arrow-spacing:
        - error
        - { before: true, after: true }
    constructor-super: error
    dot-location:
        - error
        - property
    generator-star-spacing:
        - error
        - { before: true, after: true }
    handle-callback-err:
        - error
        - "^(err|error)$"
    no-class-assign: error
    no-const-assign: error
    no-dupe-args: error
    no-dupe-class-members: error
    no-duplicate-case: error
    no-this-before-super: error
    no-throw-literal: error
    no-unexpected-multiline: error
    no-unneeded-ternary:
        - error
        - defaultAssignment: false
    no-useless-call: error
    operator-linebreak:
        - error
        - after
        - overrides: { "?": before,  ":": before }