Clarify type of id used

[rbdr/blog] / .eslintrc

{
  "extends": "@hapi/eslint-config-hapi",
  "parserOptions": {
    "ecmaVersion": 2020
  },
  "rules": {
    "indent": [
      2,
      2
    ],
    "no-undef": 2,
    "require-yield": 0
  }
}