facebookarchive/emitter

Health v2 · maintenance only

Flags: no_releases archived no_license

Adoption not part of the score

1061 stars · 120 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A lightweight JavaScript EventEmitter library (npm package fbemitter) from Facebook that prioritizes speed and simplicity for event-driven code. It provides addListener, once, emit, and subscription-based listener removal, conceptually similar to Node's EventEmitter.

Use cases

• implement pub/sub event handling in JavaScript
• replace Node's EventEmitter in browser code
• build event-driven architectures on the web
• manage listener subscriptions with easy removal
• create a foundation for custom event systems
• decouple components via emitted events

When to choose

• you need a small, fast, dependency-free emitter for browser or Node
• you want subscription tokens for precise listener removal
• you're building larger event abstractions on a simple base

When to avoid

• you need Node's native EventEmitter API compatibility
• you require advanced features like wildcard events or async listeners
• you want an actively developed library with ongoing releases

Facets

library · maturity maintenance

middleware developer-tools frontend web-development developer-tools browser event-emitter pubsub evented-architecture fbemitter observer-pattern javascript nodejs

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