eslint-plugin-no-top

Disallow side effects at the top level of files.

Based on @ericcornelissen/eslint-plugin-top.

Installation

First, install ESLint:

npm install eslint --save-dev

Then install this plugin:

npm install eslint-plugin-no-top --save-dev

Usage

Flat config (ESLint v9+)

import noTop from "eslint-plugin-no-top";

export default [
  {
    plugins: { "no-top": noTop },
    rules: {
      "no-top/no-top-level-side-effects": "error",
      "no-top/no-top-level-state": "error",
      "no-top/no-top-level-variables": "error",
    },
  },
];

The plugin key (no-top in the example) must match the prefix used in rule names.

Rules

• no-top-level-side-effects — disallow top-level side effects
• no-top-level-state — disallow stateful values (e.g. regexes with g/y flags) at the top level
• no-top-level-variables — disallow top-level variables

Development

vp install
vp test
vp pack
vp check

License

ISC