What is event handling in Node.js?

What is event handling in Node.js?

Event handling in Node.js refers to the way the system manages events, allowing asynchronous operations.

Can you give me an example of how to handle events?

Sure! You can use the 'EventEmitter' class to create and handle events. 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 handling?

Common use cases include handling user interactions, managing I/O operations, and responding to system events.

How does event handling improve performance in Node.js?

Event handling allows Node.js to perform non-blocking operations, improving performance by handling multiple requests simultaneously.