What are Node.js streams and how do I use them?

What are Node.js streams and how do I use them?

Node.js streams are objects that allow you to read data from a source or write data to a destination in a continuous manner. They are efficient for handling large amounts of data, as they process it in chunks rather than loading everything into memory at once.

Can you explain the different types of streams in Node.js?

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

How do I create a readable stream?

You can create a readable stream using the fs module. For example, you can use fs.createReadStream('file.txt') to read data from a file.

What are some common use cases for streams?

Common use cases for streams include reading and writing files, processing data in real-time, and handling HTTP requests and responses efficiently.