.eslintrc

# This .eslintrc file was copied from github.com/nodejs/node
# I figure that's a good starting point for "best practices"
#
# My changes:
#  - Mixed spaces and tabs allowed (see: http://lea.verou.me/2012/01/why-tabs-are-clearly-superior/)
#  - By the same logic, tabs set to standard indent
#  - Max line length set to 120 because who the hell has an 80 character monitor these days?
#  - Strings use double quotes. A good habit to get into since C/C++ strings require double quotes

parserOptions:
  sourceType: module

env:
  node: true
  es6: true

rules:
  # Possible Errors
  # http://eslint.org/docs/rules/#possible-errors
  comma-dangle: [2, only-multiline]
  no-control-regex: 2
  no-debugger: 2
  no-dupe-args: 2
  no-dupe-keys: 2
  no-duplicate-case: 2
  no-empty-character-class: 2
  no-ex-assign: 2
  no-extra-boolean-cast: 2
  no-extra-parens: [2, functions]
  no-extra-semi: 2
  no-func-assign: 2
  no-invalid-regexp: 2
  no-irregular-whitespace: 2
  no-obj-calls: 2
  no-proto: 2
  no-template-curly-in-string: 2
  no-unexpected-multiline: 2
  no-unreachable: 2
  no-unsafe-negation: 2
  use-isnan: 2
  valid-typeof: 2

  # Best Practices
  # http://eslint.org/docs/rules/#best-practices
  no-fallthrough: 2
  no-global-assign: 2
  no-multi-spaces: 2
  no-octal: 2
  no-redeclare: 2
  no-self-assign: 2
  no-unused-labels: 2

  # Strict Mode
  # http://eslint.org/docs/rules/#strict-mode
  strict: [2, global]

  # Variables
  # http://eslint.org/docs/rules/#variables
  no-delete-var: 2
  no-undef: 2
  no-unused-vars: [2, {args: none}]

  # Node.js and CommonJS
  # http://eslint.org/docs/rules/#nodejs-and-commonjs
  no-mixed-requires: 2
  no-new-require: 2
  no-path-concat: 2
  no-restricted-modules: [2, sys, _linklist]
  no-restricted-properties: [2, {
    object: assert,
    property: deepEqual,
    message: Please use assert.deepStrictEqual().
  }]

  # Stylistic Issues
  # http://eslint.org/docs/rules/#stylistic-issues
  brace-style: [2, 1tbs, {allowSingleLine: true}]
  comma-spacing: 2
  eol-last: 2
  func-call-spacing: 2
  indent: [2, tab, {SwitchCase: 1, MemberExpression: 1}]
  key-spacing: [2, {mode: minimum}]
  keyword-spacing: 2
  linebreak-style: [2, unix]
  max-len: [2, 120, 2]
  new-parens: 2
  no-mixed-spaces-and-tabs: 0
  no-multiple-empty-lines: [2, {max: 2}]
  no-trailing-spaces: 2
  quotes: [2, double, avoid-escape]
  semi: 2
  space-before-blocks: [2, always]
  space-before-function-paren: [2, never]
  space-in-parens: [2, never]
  space-infix-ops: 2
  space-unary-ops: 2

  # ECMAScript 6
  # http://eslint.org/docs/rules/#ecmascript-6
  arrow-parens: [2, always]
  arrow-spacing: [2, {before: true, after: true}]
  constructor-super: 2
  no-class-assign: 2
  no-confusing-arrow: 2
  no-const-assign: 2
  no-dupe-class-members: 2
  no-new-symbol: 2
  no-this-before-super: 2
  prefer-const: 2
  rest-spread-spacing: 2
  template-curly-spacing: 2

  # Custom rules in eslint-rules
  align-function-arguments: 2
  align-multiline-assignment: 2
  assert-fail-single-argument: 2
  new-with-error: [2, Error, RangeError, TypeError, SyntaxError, ReferenceError]
  no-definegetter-definesetter: 2