.eslintrc.js

'use strict';

let optional = 1;
let required = 2;

module.exports = {
  env: {
  	node: true,
  	browser: true,
  	es6: true,
  },
  rules: {
  	semi: [required, 'always'],
  	'comma-dangle': [required, 'always-multiline'],
  	'comma-style': [required, 'last'],
  	indent: [required, 2],
  	curly: [required, 'all'],
  	'brace-style': [required, '1tbs'],
  	quotes: [required, 'single'],
  	'object-curly-spacing': [required, 'never'],
  	'array-bracket-spacing': [required, 'never'],
  	'space-infix-ops': [required, {int32Hint: false}],
  	'no-var': required,
  	strict: required,
  	'no-undef': required,
  	'no-unused-vars': [required, {vars: 'all', args: 'after-used'}],
  	'block-scoped-var': required,
  	camelcase: required,
  	'eol-last': required,
  	eqeqeq: [required, 'smart'],
  	'max-depth': [optional, 3],
  	'max-len': [optional, 120],
  	'max-statements': [optional, 15],
  	'new-cap': optional,
  	'no-extend-native': required,
  	'no-mixed-spaces-and-tabs': required,
  	'no-trailing-spaces': required,
  	'no-multiple-empty-lines': [required, {max: 1, maxBOF: 0}],
  	'block-spacing': [required, 'never'],
  	'newline-per-chained-call': required,
  	'keyword-spacing': required,
  	'key-spacing': [required, {afterColon: true}],
  	'space-unary-ops': required,
  }
};