What is an Event Emitter in Node.js?

What is an Event Emitter in Node.js?

An Event Emitter is a class in Node.js that allows you to handle events and listeners. It enables you to create and manage custom events.

How do I create an Event Emitter?

You can create an Event Emitter by requiring the 'events' module and instantiating an EventEmitter object. Here's a simple example:

const EventEmitter = require('events');
const myEmitter = new EventEmitter();

Can you show me how to emit an event?

Sure! After creating an EventEmitter instance, you can emit an event using the emit method. For example:

myEmitter.emit('eventName');

How do I listen for an event?

You can listen for an event by using the on method. For example:

myEmitter.on('eventName', () => {
  console.log('An event occurred!');
});