How can I implement threading in Node.js?

How can I implement threading in Node.js?

In Node.js, you can implement threading using the Worker Threads module. This allows you to run JavaScript operations in parallel.

Can you give me an example of how to use Worker Threads?

Sure! First, you need to import the Worker class from the 'worker_threads' module. Then, you can create a new worker like this:

const { Worker } = require('worker_threads');

const worker = new Worker('./worker.js');
worker.on('message', message => console.log(message));
worker.postMessage('Start working!');

What should be in the worker.js file?

In the worker.js file, you can listen for messages and perform tasks. For example:

const { parentPort } = require('worker_threads');

parentPort.on('message', (msg) => {
  // Perform some heavy computation
  parentPort.postMessage('Task completed!');
});

Are there any limitations to using Worker Threads?

Yes, Worker Threads have some limitations, such as not sharing memory directly and the overhead of inter-thread communication. It's best for CPU-intensive tasks.