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Better-Mitt: A tiny (~400B) TypeScript-first event emitter that improves on Mitt

3 points| dhax_or | 9 months ago |npmjs.com

3 comments

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dhax_or|9 months ago

I built this as an improved version of the popular Mitt library. It keeps the tiny footprint (~400 bytes gzipped) while adding genuinely useful features that I found myself needing in real projects:

- once() for one-time listeners - hasListeners() and listenerCount() for introspection - clear() to reset everything - Safer emission that protects against handler modification during events - Full TypeScript support with generic types

Same familiar API as Node's EventEmitter and original Mitt, so it's a drop-in replacement. I've been using it in production and it's been solid.

GitHub: https://github.com/Dhaxor/better-mitt

NPM: npm install better-mitt

Would love feedback from the community - and if you find it useful, a GitHub star would be much appreciated!

nakamurahiro1|9 months ago

Great work! I've always wanted a once in an event emitter but mitt never had that

softwarefef|9 months ago

I guess the increase in bytes was because of the added functionalities?