steam in javascript

Streaming is a popular technique in Node.js for managing data flows, especially when dealing with large amounts of data. Streams allow us to read or write data chunk by chunk, instead of trying to load everything into memory at once.

Node.js provides us with four basic types of streams: Readable, Writable, Duplex, and Transform. In this example, we will look at how to create a Writable stream and pipe a Readable stream to it.

index.tsx
const fs = require('fs');

// Create a write stream
const writeStream = fs.createWriteStream('output.txt');

// Create a read stream
const readStream = fs.createReadStream('input.txt');

// Pipe the read stream to the write stream
readStream.pipe(writeStream);
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In this example, we create a Writable stream called writeStream and a Readable stream called readStream. We then use the pipe() method to pipe the data from the readStream to the writeStream. This will take care of reading the data from the readStream in chunks and writing it to the writeStream until all the data has been written.

By using streams, we can efficiently handle large amounts of data without running out of memory. Additionally, streams can be used in a variety of scenarios, such as network sockets, file system manipulation, and HTTP requests and responses.