# fast-event-emitter

> fast event emitter

Latest version **0.0.2** (published 2014-10-26) · ISC license · 0 weekly downloads

## Install

```sh
npm install fast-event-emitter
pnpm add fast-event-emitter
yarn add fast-event-emitter
bun add fast-event-emitter
```

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support; pre 1.0.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 0.0.2 |
| Published | 2014-10-26 |
| First published | 2014-10-26 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 1 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 0 |
| Maintainers | architectd |

## Links

- npm: https://www.npmjs.com/package/fast-event-emitter
- Repository: https://github.com/mojo-js/fast-event-emitter.js
- Issues: https://github.com/mojo-js/fast-event-emitter.js/issues
- npm.io page: https://npm.io/package/fast-event-emitter

## Dependencies (1)

- [protoclass](https://npm.io/package/protoclass.md) 0.0.6

## Recent versions

- 0.0.2 (latest) — 2014-10-26
- 0.0.1 — 2014-10-26

## README

Fast implementation of Node's event emitter. Simple 

Benchmark:

```
new EventEmitter() x 19,984,579 ops/sec ±4.82% (71 runs sampled)
em.on('event', listener).dispose() x 5,777,453 ops/sec ±2.20% (85 runs sampled)
em.once('event', listener); em.emit('event'); x 1,821,827 ops/sec ±5.32% (78 runs sampled)
em.emit('oneListener'); x 2,022,895 ops/sec ±2.31% (84 runs sampled)
em.emit('oneListener', 1); x 14,901,685 ops/sec ±6.69% (66 runs sampled)
em.emit('oneListener', 1, 2); x 24,374,163 ops/sec ±5.28% (91 runs sampled)
em.emit('twoListeners'); x 8,369,519 ops/sec ±1.09% (89 runs sampled)
em.emit('twoListeners', 1); x 6,826,521 ops/sec ±0.99% (94 runs sampled)
em.emit('twoListeners', 1, 2); x 6,566,629 ops/sec ±1.00% (93 runs sampled)
```

### EventEmitter()

Creates a new event emitter

### listener on(event, callback)

creates, and returns a new listener

### listener off(event, callback)

removes a listener

### listener once(event, callback)

Creates one listener, and disposes it once it's called

### emit(event[, ...args])

emits an event with the given arguments

### listener.dispose()

disposes the listener

---
_Source: https://npm.io/package/fast-event-emitter · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._