.eslintrc

{
  // http://eslint.org/docs/rules/
  "env": {
    "node": true
  },
  "parserOptions": {
    "ecmaVersion": 2017,
    "sourceType": "module"
  },

  "extends": "eslint:recommended",
  "rules": {
    "valid-jsdoc": "error",
    "default-case": "error",
    "id-length": [
      "error",
      {
        "min": 2,
        "exceptions": ["id"]
      }
    ],
    "no-alert": "error",
    "no-implicit-coercion": "error",
    "no-implied-eval": "error",
    "no-invalid-this": "error",
    "no-labels": "error",
    "no-lone-blocks": "error",
    "no-loop-func": "error",
    "no-magic-numbers": [
      "error",
      {
        "ignore": [0, 1, 2]
      }
    ],
    "no-param-reassign": "error",
    "no-prototype-builtins": "off",
    "no-return-assign": ["error", "always"],
    "no-script-url": "error",
    "no-self-compare": "error",
    "no-sequences": "error",
    "no-throw-literal": "error",
    "no-unmodified-loop-condition": "error",
    "no-unused-expressions": "error",
    "no-useless-call": "error",
    "no-useless-concat": "error",
    "no-useless-return": "error",
    "no-void": "error",
    "no-with": "error",

    /**
    * Stylistic rules
    */

    "camelcase": "error",
    "complexity": "error",
    "curly": [
      "error",
      "all"
    ],
    "max-depth": [
      "error",
      3  // http://eslint.org/docs/rules/max-depth
    ],
    "new-cap": "error",
    "new-parens": "error",
    "no-continue": "error",
    "no-lonely-if": "error",
    "no-multiple-empty-lines": [
        "error",
        {
          "max": 1
        }
    ],
    "no-nested-ternary": "error",
    "no-tabs": "error",
    "no-trailing-spaces": [
      "error",
      {
        "ignoreComments": true,
        "skipBlankLines": true
      }
    ],
    "no-unneeded-ternary": "error",
    "nonblock-statement-body-position": [
      "error",
      "beside"  // http://eslint.org/docs/rules/nonblock-statement-body-position
    ],
    "one-var-declaration-per-line": [
      "error",
      "always"
    ],
    "semi": [
      "error",
      "always"
    ],
    "vars-on-top": "error",

    /**
      * ES6 Specific
      */

    "arrow-body-style": [
      "error",
      "as-needed"
    ],
    "no-confusing-arrow": "error",
    "no-useless-constructor": "error",
    "no-var": "error",
    "prefer-const": "error",
    "prefer-template": "error"
  }
}