What is the Node.js event loop?

Can you explain what the Node.js event loop is?

Sure! The Node.js event loop is a mechanism that allows Node.js to perform non-blocking I/O operations, despite being single-threaded.

How does the event loop handle asynchronous operations?

The event loop uses a callback queue to manage asynchronous operations, executing callbacks once the main thread is free.

What are some common use cases for the event loop?

Common use cases include handling HTTP requests, reading files, and interacting with databases without blocking the main thread.

Can you give an example of how it works in practice?

Certainly! When a file is read asynchronously, the event loop continues processing other tasks until the file read is complete, at which point the callback is executed.