.eslintrc

{
  "env": {
    "es6": true
  },
  "extends": "eslint:recommended",
  "parserOptions": {
    "ecmaVersion": 9,
    "sourceType": "module"
  },
  "rules": {
    "array-callback-return": 2,
    "block-scoped-var": 2,
    "class-methods-use-this": 2,
    "complexity": [2, {
      "max": 20
    }],
    "consistent-return": [2, {
      "treatUndefinedAsUnspecified": false
    }],
    "curly": [2, "all"],
    "default-case": 2,
    "dot-location": [2, "property"],
    "dot-notation": [2, {
      "allowKeywords": false
    }],
    "eqeqeq": [2, "always"],
    "guard-for-in": 2,
    "max-classes-per-file": [2, 1],
    "no-alert": 2,
    "no-await-in-loop": 2,
    "no-caller": 2,
    "no-else-return": [2, {
      "allowElseIf": false
    }],
    "no-empty-function": [2, {
      "allow": [
        "generatorMethods"
      ]
    }],
    "no-eq-null": 2,
    "no-eval": 2,
    "no-extend-native": 2,
    "no-extra-bind": 2,
    "no-extra-label": 2,
    "no-floating-decimal": 2,
    "no-implicit-coercion": 2,
    "no-implicit-globals": 2,
    "no-implied-eval": 2,
    "no-template-curly-in-string": 2,
    "valid-jsdoc": [2, {
      "matchDescription": "[A-Z]+.{5}.*",
      "prefer": {
        "arg": "param",
        "argument": "param",
        "class": "constructor",
        "return": "return",
        "virtual": "abstract"
      },
      "preferType": {
        "Boolean": "Boolean",
        "Number": "Number",
        "object": "Object",
        "String": "String"
      },
      "requireParamDescription": true,
      "requireParamType": true,
      "requireReturn": true,
      "requireReturnDescription": true,
      "requireReturnType": true
    }]
  }
}