@garzj/event-subscriber

node-event-subscriber

Proxies subscriptions to an EventEmitter and stores references, allowing for an easy removal.

Features

• TypeScript support
• Optionally compatible with
  • typed-emitter
  • tiny-typed-emitter

Installation

npm i @garzj/event-subscriber

Usage

import { EventEmitter } from 'events';
import { EventSubscriber } from '@garzj/event-subscriber';

const myEmitter = new EventEmitter();

myEmitter.on('my-event', () => console.log('Always called!'));
myEmitter.emit('my-event');

const sub = new EventSubscriber(myEmitter);
sub.on('my-event', () => console.log('Temporarily called!'));
myEmitter.emit('my-event');
sub.off();

myEmitter.emit('my-event');

Output

Always called!
Always called!
Temporarily called!
Always called!