.eslintrc.json

{
  "extends": "airbnb-base",
  "rules": {
    "linebreak-style": 0,
    "one-var": 0,
    "one-var-declaration-per-line": 0,
    "new-cap": 0,
    "consistent-return": 0,
    "no-param-reassign": 0,
    "comma-dangle": 0,
    "eol-last": "off",
    "class-methods-use-this": "off",
    "no-underscore-dangle": "off",
    "quotes": [2, "single"],
    "no-unused-vars": "warn",
    "no-console": "warn",
    "operator-linebreak": "off",
    "semi": [
      2,
      "never"
    ],
    "func-names": ["error", "never"],
    "valid-jsdoc": [
      "error",
      {
        "requireReturn": true,
        "requireReturnType": true,
        "requireParamDescription": false,
        "requireReturnDescription": true
      }
    ],
    "require-jsdoc": [
      "error",
      {
        "require": {
          "FunctionDeclaration": true,
          "MethodDefinition": true,
          "ClassDeclaration": true
        }
      }
    ],
    "space-before-function-paren": [
      "error",
      {
        "anonymous": "always",
        "named": "always",
        "asyncArrow": "always"
      }
    ]
  }
}