Skip to main content
Deno 2 is finally here 🎉️
Learn more
Module

std/node/stream.ts>Readable#unpipe

Deno standard library
Go to Latest
The Standard Library has been moved to JSR. See the blog post for details.
method Readable.prototype.unpipe
Re-export
import { Readable } from "https://deno.land/std@0.162.0/node/stream.ts";

The readable.unpipe() method detaches a Writable stream previously attached using the pipe method.

If the destination is not specified, then all pipes are detached.

If the destination is specified, but no pipe is set up for it, then the method does nothing.

const fs = require('fs');
const readable = getReadableStreamSomehow();
const writable = fs.createWriteStream('file.txt');
// All the data from readable goes into 'file.txt',
// but only for the first second.
readable.pipe(writable);
setTimeout(() => {
  console.log('Stop writing to file.txt.');
  readable.unpipe(writable);
  console.log('Manually close the file stream.');
  writable.end();
}, 1000);

Parameters

optional
destination: WritableStream

Optional specific stream to unpipe