What are JavaScript streams and how do they work?

What are JavaScript streams and how do they work?

JavaScript streams are objects that allow you to read data from a source or write data to a destination in a continuous manner. They are particularly useful for handling large amounts of data efficiently.

Can you explain the different types of streams in JavaScript?

Sure! There are four main types of streams in JavaScript: Readable, Writable, Duplex, and Transform streams. Readable streams allow you to read data, Writable streams let you write data, Duplex streams can do both, and Transform streams modify the data as it is read or written.

How do I create a readable stream?

You can create a readable stream using the Readable class from the 'stream' module. Here's a simple example:

const { Readable } = require('stream');

const readable = new Readable({
  read() {
    this.push('Hello, ');
    this.push('world!');
    this.push(null); // No more data
  }
});

readable.pipe(process.stdout);