.eslintrc.json

{
  "env": {
    "commonjs": true,
    "es6": true,
    "node": true,
    "mocha": true
  },
  "extends": "eslint:recommended",
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 2018
  },
  "rules": {
    "indent": [
      "error",
      2
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "semi": [
      "error",
      "always"
    ],
    "no-var": "error",
    "no-console": "off",
    "no-unused-vars": "warn",
    "func-call-spacing": [
      "error",
      "never"
    ],
    "space-before-blocks": "error",
    "keyword-spacing": "error",
    "no-trailing-spaces": ["error", { "skipBlankLines": true }],
    "semi-spacing": "error",
    "func-style": ["error", "expression"],
    "space-infix-ops": "error",
    "space-in-parens": "error",
    "camelcase": "error",
    "eqeqeq": "error",
    "brace-style": "error",
    "space-before-function-paren": [ "warn", { "anonymous": "never", "named": "never", "asyncArrow": "never" } ],
    "func-names": ["error", "never"],
    "quotes": "off"
  }
}