.eslintrc

env:
  node: true
  es6: true

parser: "babel-eslint"

rules:
  accessor-pairs: "error"
  array-callback-return: "error"
  arrow-parens: ["error", "always"]
  arrow-spacing: ["error", { before: true, after: true }]
  block-spacing: "error"
  brace-style: ["error", "1tbs", { allowSingleLine: true }]
  comma-dangle: ["error", "only-multiline"]
  comma-spacing: "error"
  comma-style: "error"
  computed-property-spacing: "error"
  constructor-super: "error"
  dot-location: ["error", "property"]
  dot-notation: "error"
  eol-last: "error"
  eqeqeq: ["error", "smart"]
  for-direction: "error"
  func-call-spacing: "error"
  func-name-matching: "error"
  func-style: ["error", "declaration", { allowArrowFunctions: true }]
  indent: ["error", 2, {
    ArrayExpression: "first",
    CallExpression: { arguments: "first" },
    FunctionDeclaration: { parameters: "first" },
    FunctionExpression: { parameters: "first" },
    MemberExpression: "off",
    ObjectExpression: "first",
    SwitchCase: 1,
  }]
  key-spacing: ["error", {mode: "strict"}]
  keyword-spacing: "error"
  linebreak-style: ["error", "unix"]
  new-parens: "error"
  no-class-assign: "error"
  no-confusing-arrow: "error"
  no-const-assign: "error"
  no-control-regex: "error"
  no-debugger: "error"
  no-delete-var: "error"
  no-dupe-args: "error"
  no-dupe-class-members: "error"
  no-dupe-keys: "error"
  no-duplicate-case: "error"
  no-duplicate-imports: "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-fallthrough: "error"
  no-func-assign: "error"
  no-global-assign: "error"
  no-invalid-regexp: "error"
  no-irregular-whitespace: "error"
  no-lonely-if: "error"
  no-misleading-character-class: "error"
  no-mixed-requires: "error"
  no-mixed-spaces-and-tabs: "error"
  no-multi-spaces: ["error", { ignoreEOLComments: true }]
  no-multiple-empty-lines: ["error", { max: 2, maxEOF: 0, maxBOF: 0 }]
  no-negated-in-lhs: "error"
  no-new-require: "error"
  no-new-symbol: "error"
  no-obj-calls: "error"
  no-octal: "error"
  no-path-concat: "error"
  no-proto: "error"
  no-redeclare: "error"
  no-restricted-modules: ["error", "sys"]
  no-restricted-syntax: ["error",
    {
      selector: "CallExpression[callee.name='setTimeout'][arguments.length<2]",
      message: "`setTimeout()` must be invoked with at least two arguments.",
    },
    {
      selector: "CallExpression[callee.name='setInterval'][arguments.length<2]",
      message: "`setInterval()` must be invoked with at least two arguments.",
    },
    {
      selector: "ThrowStatement > CallExpression[callee.name=/Error$/]",
      message: "Use `new` keyword when throwing an `Error`.",
    }
  ]
  no-return-await: "error"
  no-self-assign: "error"
  no-self-compare: "error"
  no-tabs: "error"
  no-template-curly-in-string: "error"
  no-this-before-super: "error"
  no-throw-literal: "error"
  no-trailing-spaces: 2
  no-undef: ["error", { typeof: true }]
  no-undef-init: "error"
  no-unexpected-multiline: 2
  no-unreachable: "error"
  no-unsafe-finally: "error"
  no-unsafe-negation: "error"
  no-unused-labels: "error"
  no-unused-vars: ["error", { args: "none", caughtErrors: "all" }]
  no-use-before-define: ["error", {
    classes: true,
    functions: false,
    variables: false
  }]
  no-useless-call: "error"
  no-useless-catch: "error"
  no-useless-concat: "error"
  no-useless-constructor: "error"
  no-useless-escape: "error"
  no-useless-return: "error"
  no-void: "error"
  no-whitespace-before-property: "error"
  no-with: "error"
  object-curly-spacing: ["error", "always"]
  one-var: ["error", { initialized: "never" }]
  one-var-declaration-per-line: "error"
  operator-linebreak: ["error", "after"]
  prefer-const: ["error", { ignoreReadBeforeAssign: true }]
  quotes: ["error", "single", { avoidEscape: true }]
  quote-props: ["error", "consistent"]
  rest-spread-spacing: "error"
  semi: "error"
  semi-spacing: "error"
  space-before-blocks: ["error", "always"]
  space-before-function-paren: ["error", {
    anonymous: "never",
    named: "never",
    asyncArrow: "always",
  }]
  space-in-parens: ["error", "never"]
  space-infix-ops: "error"
  space-unary-ops: "error"
  spaced-comment: ["error", "always", {
    block: { "balanced": true },
    exceptions: ["-"],
  }]
  strict: ["error", "global"]
  symbol-description: "error"
  template-curly-spacing: "error"
  unicode-bom: "error"
  use-isnan: "error"
  valid-typeof: "error"