How do web workers communicate in JavaScript?

How do web workers communicate in JavaScript?

Web workers communicate using the postMessage method. They can send messages to each other and to the main thread.

Can you give me an example of using postMessage?

Sure! In the main thread, you can create a worker and send a message like this: worker.postMessage('Hello Worker!');.

What happens when the worker receives a message?

The worker can listen for messages using the onmessage event handler. It processes the message and can respond back.

Is there a way to handle errors in web workers?

Yes, you can use the onerror event handler in the worker to catch and handle errors.