How does an event emitter work?

Can you explain how an event emitter works in JavaScript?

Sure! An event emitter is a design pattern that allows objects to communicate with each other by emitting events and listening for them.

How do I create an event emitter in Node.js?

In Node.js, you can create an event emitter by using the 'EventEmitter' class from the 'events' module. Here's a simple example:

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

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

myEmitter.emit('event');

What are some common use cases for event emitters?

Common use cases include handling user interactions, managing asynchronous operations, and implementing pub/sub patterns in applications.

Can event emitters be used in front-end frameworks?

Yes, many front-end frameworks like React and Vue use similar concepts to manage state and handle events.