.eslintrc.json

{
  "extends": [
    "airbnb-base"
  ],
  "env": {
    "browser": "node"
  },
  "rules": {
    "arrow-body-style": "off",
    "no-shadow": "warn",
    "no-lonely-if": "warn",
    "import/newline-after-import": "warn",
    "global-require": "warn",
    "new-cap": "warn",
    "max-len": "off",
    "no-param-reassign": "off",
    "no-else-return": "warn",
    "no-loop-func": "warn",
    "no-console": "off",
    "prefer-const": "warn",
    "prefer-template": "off",
    "prefer-destructuring": "off",
    "no-const-assign": "warn",
    "yoda": "warn",
    "spaced-comment": "warn",
    "camelcase": "warn",
    "import/no-dynamic-require": "warn",
    "import/no-extraneous-dependencies": "warn",
    "no-bitwise": "error",
    "curly": "error",
    "eqeqeq": "warn",
    "wrap-iife": "error",
    "indent": [ 2, 2, { "SwitchCase": 1 } ],
    "no-use-before-define": "warn",
    "no-caller": "error",
    "quotes": [ "warn", "single" ],
    "no-undef": "error",
    "no-unused-vars": "warn",
    "no-underscore-dangle":  ["error", { "allow": ["_id"] }],
    "no-async-promise-executor": "off"
  },

  "overrides": [
    {
      "files": ["public/js/*.js"],
      "env": {
        "browser": "true",
        "jquery": "true"
      }
    }
  ]
}