ESMitter

Modern, ESM-only, natively TypeScript event emitter for the browser and Node.js

ESMitter is a fork of the popular EventEmitter3 with a focus on EcmaScript module syntax, TypeScript and modern tooling.

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API Reference

ESM-only

No CommonJS/UMD/AMD, just a pure EcmaScript module with modern ES6+ syntax.

Natively TypeScript

Rewritten in TypeScript, ESMitter offers strongly typed event context and listeners.

Great Developer Experience

The latest tooling, Unit Tests, Code Coverage, Benchmarks and decent documentation.

ALPHA STAGE

This project is currently under development. Initial tests suggests, that it is working properly and because I want to maintain compatibility with EventEmitter3 and the Node EventEmitter API, no breaking changes are to be expected. However, the unit tests and documentation are unfinished.

Furthermore, initial performance tests show that this implementation does not match the speed delivered by EventEmitter3. While I don't expect to surpass EventEmitter3 in performance, I'm hopeful that this can be improved.