.eslintrc.json

{
  "parserOptions": {
    "ecmaVersion": 9,
    "sourceType": "module"
  },
  "env": {
    "browser": true
  },
  "extends": [
    "eslint:recommended",
    "prettier"
  ],
  "plugins" : [
    "prettier"
  ],
  "globals": {
    "_": true,
    "Backbone": true,
    "console": true,
    "ga": true,
    "intern": true,
    "module": true,
    "Promise": true,
    "require": true,
    "WindowHelpers": true,
    "__dirname": true
  },
  "rules": {
    "eqeqeq": [2, "smart"],
    "new-cap": 2,
    "no-cond-assign": 0,
    "no-redeclare": ["error", { "builtinGlobals": false }],
    "no-prototype-builtins": "off",
    "no-use-before-define": 2,
    "one-var": [2, "never"],
    "prettier/prettier": "error",
    "no-unused-vars": "off"
  }
}