What are some common use cases for EventEmitter in Node.js?

What are some common use cases for EventEmitter in Node.js?

EventEmitter is often used for handling asynchronous events, such as user interactions, file uploads, or API responses.

Can you give me an example of how to use EventEmitter?

Sure! You can create an instance of EventEmitter and use the 'on' method to listen for events, like this:

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

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

myEmitter.emit('event'); // This will trigger the event and log the message.

What are some specific scenarios where EventEmitter is particularly useful?

It's particularly useful in scenarios like building real-time applications, managing streams of data, or creating modular components that communicate through events.

Are there any limitations to using EventEmitter?

Yes, one limitation is that it can lead to memory leaks if event listeners are not properly removed, especially in long-running applications.