Blob.stream()

The Blob interface's stream() method returns a ReadableStream which upon reading returns the data contained within the Blob.

Syntax

var stream = blob.stream();

Parameters

None.

Returns

A ReadableStream which, upon reading, returns the contents of the Blob.

Usage notes

With stream() and the returned ReadableStream, you gain several interesting capabilities:

  • Call getReader() on the returned stream to get an object to use to read the data from the blob using methods such as the ReadableStreamDefaultReader interface's read() method.
  • Call the returned stream's pipeTo() method to pipe the blob's data to a writable stream.
  • Call the returned stream's tee() method to tee the readable stream. This returns an array containing two new ReadableStream objects, each of which returns the contents of the Blob.
  • Call the returned stream's pipeThrough() method to pipe the stream through a TransformStream or any other readable and writable pair.

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
stream
76
79
69
No
No
14.1
76
76
No
54
14.5
12.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Blob/stream