.eslintrc.json

{
  "parser": "babel-eslint",
  "extends": "eslint:recommended",
  "env": {
    "es6"    : true,
    "browser": true,
    "node"   : true,
    "jquery" : true,
    "mocha"  : true
  },
  "ecmaFeatures": {
    "modules": true
  },
  "rules": {
    "quotes"                     : 0,
    "no-console"                 : 1,
    "no-debugger"                : 1,
    "semi"                       : [1, "always"],
    "no-trailing-spaces"         : 0,
    "eol-last"                   : 0,
    "no-unused-vars"             : 1,
    "no-underscore-dangle"       : 0,
    "no-alert"                   : 0,
    "no-lone-blocks"             : 0,
    "block-spacing"              : [1, "always"],
    "brace-style"                : [1, "1tbs"],
    "comma-spacing"              : [2, {"before": false, "after": true}],
    "comma-style"                : [2, "last"],
    "consistent-this"            : [2, "self"],
    "quotes"                     : [2, "single", "avoid-escape"],
    "space-before-blocks"        : [1, "always"],
    "space-before-function-paren": [1, "always"],
    "space-in-parens"            : [1, "never"]
  }
}