What is the JavaScript event loop?

Can you explain what the JavaScript event loop is?

Sure! The JavaScript event loop is a mechanism that allows JavaScript to perform non-blocking operations by using a single thread.

How does it handle asynchronous tasks?

It uses a call stack and a message queue. When an asynchronous task is completed, its callback is pushed to the queue, waiting for the call stack to be empty.

What happens if there are multiple tasks in the queue?

The event loop processes tasks in the queue one at a time, ensuring that each task is completed before moving on to the next.

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

Certainly! For instance, if you set a timeout with setTimeout, the callback will be added to the queue after the specified delay, and will execute once the call stack is clear.