Node.js eslint configuration.

eslintrc.json

{
  "env": {
    "commonjs": true,
    "es6": true,
    "node": true,
    "mocha": true
  },
  "plugins": [
    "security"
  ],
  "extends": [
    "eslint:recommended",
    "plugin:node/recommended",
    "plugin:security/recommended"
  ],
  "globals": {
    "Atomics": "readonly",
    "SharedArrayBuffer": "readonly"
  },
  "parserOptions": {
    "ecmaVersion": 2020
  },
  "rules": {
    "no-undef": 0,
    "no-shadow": "off",
    "no-else-return": "error",
    "no-empty": "error",
    "no-lonely-if": "error",
    "node/no-unpublished-require": 0,
    "node/exports-style": [
      "error",
      "module.exports"
    ],
    "node/file-extension-in-import": [
      "error",
      "always"
    ],
    "node/prefer-global/buffer": [
      "error",
      "always"
    ],
    "node/prefer-global/console": [
      "error",
      "always"
    ],
    "node/prefer-global/process": [
      "error",
      "always"
    ],
    "node/prefer-global/url-search-params": [
      "error",
      "always"
    ],
    "node/prefer-global/url": [
      "error",
      "always"
    ],
    "node/prefer-promises/dns": "error",
    "node/prefer-promises/fs": "error"
  }
}