.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true,
    "jasmine": true,
    "jest": true
  },
  "extends": ["eslint:recommended", "prettier"],
  "parserOptions": {
    "sourceType": "module",
    "ecmaVersion": 9
  },
  "plugins": ["prettier"],
  "rules": {
    "one-var": ["error", "never"],
    "no-return-await": ["error"],
    "prettier/prettier": ["error", {
      "singleQuote": true
    }],
    "require-await": ["error"],
    "prettier/prettier": ["error", {
      "singleQuote": true
    }],
    "require-jsdoc": [
      "error", {
        "require": {
          "FunctionDeclaration": false,
          "MethodDefinition": true,
          "ClassDeclaration": true,
          "ArrowFunctionExpression": false
        }
      }
    ],
    "valid-jsdoc": [
      "error",
      {
        "requireReturn": false,
        "prefer": {
          "return": "returns"
        },
        "preferType": {
          "Boolean": "boolean",
          "Number": "number",
          "String": "string",
          "Symbol": "symbol",
          "object": "Object"
        }
      }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "spaced-comment": [
      "error",
      "always"
    ],
    "max-len": [
      "error",
      80,
      {
        "ignoreUrls": true
      }
    ]
  }
}