.eslintrc

{
  "parserOptions": {
    "ecmaVersion": 9,
    "sourceType": "script"
  },
  "env": {
    "node": true,
    "es6": true
  },
  "rules": {
    "no-unused-vars": [2, {
      "argsIgnorePattern": "req|res|next|err"
    }],
    "no-param-reassign": [0],
    "no-restricted-syntax": [
      "error",
      {
        "selector": "ForInStatement",
        "message": "for..in loops iterate over the entire prototype chain, which is virtually never what you want. Use Object.{keys,values,entries}, and iterate over the resulting array."
      },
      {
        "selector": "LabeledStatement",
        "message": "Labels are a form of GOTO; using them makes code confusing and hard to maintain and understand."
      },
      {
        "selector": "WithStatement",
        "message": "`with` is disallowed in strict mode because it makes code impossible to predict and optimize."
      }
    ],
    "no-console": [0],
    "no-await-in-loop": [0],
    "no-shadow": [0],
    "global-require": [0],
    "prefer-const": ["error", {
      "destructuring": "all",
      "ignoreReadBeforeAssign": true
    }]
  },
  "extends": "airbnb-base"
}