.eslintrc

{
  "plugins": ["node", "jest", "import"],
  "extends": ["eslint:recommended", "plugin:node/recommended", "plugin:jest/recommended"],
  "env": {
    "node": true,
    "es6": true,
    "jest/globals": true
  },
  "parserOptions": {
    "ecmaVersion": 2017,
    "sourceType": "module"
  },
  "rules": {
    "no-console": "off",
    "no-extra-parens": "error",
    "valid-jsdoc": [
      "error",
      {
        "requireParamDescription": false,
        "requireReturnDescription": false,
        "requireReturn": false,
        "prefer": {
          "returns": "return"
        }
      }
    ],
    "curly": "error",
    "guard-for-in": "error",
    "no-caller": "error",
    "no-extend-native": "error",
    "no-extra-bind": "error",
    "no-invalid-this": "error",
    "no-multi-spaces": "error",
    "no-multi-str": "error",
    "no-new-wrappers": "error",
    "no-throw-literal": "error",
    "no-with": "error",
    "no-unused-vars": [
      "error",
      {
        "args": "none"
      }
    ],
    "array-bracket-newline": [
      "error",
      {
        "multiline": true
      }
    ],
    "array-bracket-spacing": [
      "error",
      "always"
    ],
    "block-spacing": [
      "error",
      "always"
    ],
    "brace-style": "error",
    "camelcase": "error",
    "comma-dangle": ["error", "always-multiline"],
    "comma-spacing": "error",
    "comma-style": "error",
    "computed-property-spacing": "error",
    "eol-last": "error",
    "func-call-spacing": "error",
    "indent": ["error", 4],
    "key-spacing": "error",
    "keyword-spacing": "error",
    "max-len": [
      "error",
      {
        "code": 100,
        "ignoreUrls": true,
        "ignoreRegExpLiterals": true
      }
    ],
    "new-cap": "error",
    "no-array-constructor": "error",
    "no-mixed-spaces-and-tabs": "error",
    "no-multiple-empty-lines": [
      "error",
      {
        "max": 2
      }
    ],
    "no-new-object": "error",
    "no-tabs": "error",
    "no-trailing-spaces": "error",
    "object-curly-spacing": ["error", "always"],
    "padded-blocks": [
      "error",
      "never"
    ],
    "quotes": [
      "error",
      "single",
      {
        "avoidEscape": true,
        "allowTemplateLiterals": true
      }
    ],
    "semi": "error",
    "semi-spacing": "error",
    "space-before-blocks": "error",
    "space-before-function-paren": [
      "error",
      {
        "asyncArrow": "always",
        "anonymous": "never",
        "named": "never"
      }
    ],
    "spaced-comment": "error",
    "switch-colon-spacing": "error",
    "arrow-parens": [
      "error",
      "always"
    ],
    "constructor-super": "error",
    "generator-star-spacing": "error",
    "no-this-before-super": "error",
    "no-var": "error",
    "prefer-rest-params": "error",
    "prefer-spread": "error",
    "rest-spread-spacing": "error",
    "yield-star-spacing": "error",
    "eqeqeq": "error",
    "node/exports-style": ["error", "module.exports"],
    "node/no-unpublished-require": [
      "error",
      {
        "allowModules": ["js-yaml", "extend", "object-hash"]
      }
    ],
    "node/no-unsupported-features": 0,
    "node/shebang": 0,
    "import/no-commonjs": 2
  }
}