Events
This is an alternative event emitter that works on all platforms. It allows you to specify the event types, and keeps
the emit method protected.
npm install @baileyherbert/events
Example
Extend the EventEmitter class and provide an enumeration of tuples for <T>:
import { EventEmitter } from '@baileyherbert/events';
export class Chat extends EventEmitter<Events> {
protected _onUserConnected(user: User) {
this.emit('connected', user.username);
}
}
type Events = {
/**
* These JSDoc comments will show up in intellisense too!
*/
chat: [username: string, message: string];
connected: [username: string];
disconnected: [username: string];
};Then you can listen to those events like usual, but with autocompleted event names and typed arguments.
const chat = new Chat();
chat.on('connected', username => {});
chat.on('disconnected', username => {});
chat.on('chat', (username, message) => {});