.eslintrc.json

{
  "rules": {
    "no-console": "off",
    "no-extra-parens": "warn",
    "valid-jsdoc": "off",
    "new-cap": ["warn", {"properties": false}],
    "comma-spacing": ["error", {"before": false, "after": true}],
    "no-extra-boolean-cast": "warn",
    "strict": ["warn", "global"],
    "no-var": "error",
    "prefer-const": "error",
    "semi": ["error", "always"],
    "space-before-function-paren": ["warn", "always"],
    "keyword-spacing": ["warn"],
    "prefer-arrow-callback": "error",
    "arrow-parens": ["error", "as-needed"],
    "comma-style": ["warn", "last"],
    "no-bitwise": "off",
    "no-cond-assign": ["error", "except-parens"],
    "curly": "off",
    "eqeqeq": "error",
    "no-extend-native": "error",
    "wrap-iife": ["error", "any"],
    "indent": ["error", 2, {"SwitchCase": 1}],
    "no-use-before-define": "off",
    "no-caller": "error",
    "no-undef": "error",
    "no-unused-vars": "error",
    "no-irregular-whitespace": "error",
    "max-depth": ["error", 8],
    "quotes": ["error", "single", {"avoidEscape": true}],
    "linebreak-style": "error",
    "no-loop-func": "warn",
    "object-shorthand": "error",
    "one-var-declaration-per-line": "warn",
    "comma-dangle": "warn",
    "no-shadow": "warn",
    "camelcase": "warn"
  },
  "parserOptions": {
    "ecmaVersion": 2017,
    "sourceType": "module"
  },
  "env": {
    "node": true,
    "mocha": true,
    "es6": true
  }
}