.eslintrc.json

{
  "env": {
    "es2021": true,
    "browser": true
  },
  "extends": "eslint:recommended",
  "rules": {
    "jsdoc/require-description-complete-sentence": [
      "error", {
        "tags": ["see", "copyright"]
      }
    ],
    "no-multiple-empty-lines": [
      "error",
      {
        "max": 2
      }
    ],
    "object-curly-spacing": [
      "error",
      "always"
    ],
    "indent": [
      "error",
      4,
      {
        "outerIIFEBody": 0 ,
        "SwitchCase": 1
      }
    ],
    "no-empty": [
      "error",
      {
        "allowEmptyCatch": true
      }
    ],
    "linebreak-style": [
      "error",
      "unix"
    ],
    "quotes": [
      "error",
      "single"
    ],
    "semi": [
      "error",
      "always"
    ],
    "no-redeclare": [
      2,
      {
        "builtinGlobals": true
      }
    ],
    "no-console": 0,
    "no-undef": [
      "error"
    ]
  },
  "plugins": [
    "jsdoc"
  ],
  "globals": {
    "unsafeWindow": false,
    "GM_addStyle": false,
    "GM_setValue": false,
    "GM_getValue": false
  }
}