Awesome

eslint-plugin-no-re-export

[!CAUTION] Use canonical/no-re-export instead of no-re-export/no-re-export. See https://github.com/gajus/eslint-plugin-canonical/pull/27 for more info

Disallow re-exporting in TypeScript/JavaScript.

Installation

# npm
npm install eslint-plugin-no-re-export --save-dev

# yarn
yarn add eslint-plugin-no-re-export --dev

# bun
bun install eslint-plugin-no-re-export --save-dev

Usage

Add no-re-export to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
  "plugins": ["no-re-export"]
}

Then configure the rules you want to use under the rules section.

{
  "rules": {
    "no-re-export/no-re-export": "error"
  }
}

Rules

References

• Speeding up the JavaScript ecosystem - The barrel file debacle by @marvinhagemeister

• Burn the Barrel! by @uglow

• Your Next.js Bundle Will Thank You by @askides

• Barrel files in JavaScript by @flaming

• Comment by @ljharb at eslint-plugin-import/issues/1920

  Barrel exports increase bundle size and memory footprint, and are the only reason treeshaking is needed (to only-partially clean up sloppy importing), and in my experience, are best avoided, especially in any codebase of significant scale/size.