ReadableByteStreamController

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The ReadableByteStreamController interface of the Streams API represents a controller allowing control of a ReadableStream's state and internal queue. Byte stream controllers are for byte streams.

Constructor

None. ReadableByteStreamController instances are created automatically during ReadableStream construction.

Properties

ReadableByteStreamController.byobRequest Read only: Returns the current BYOB pull request.
ReadableByteStreamController.desiredSize Read only: Returns the desired size required to fill the stream's internal queue.

Methods

ReadableByteStreamController.close(): Closes the associated stream.
ReadableByteStreamController.enqueue(): Enqueues a given chunk in the associated stream.
ReadableByteStreamController.error(): Causes any future interactions with the associated stream to error.

Examples

TBD.

Specifications

Specification	Status	Comment
Streams The definition of 'ReadableByteStreamController' in that specification.	Living Standard	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ReadableByteStreamController` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`ReadableByteStreamController()` constructor Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`byobRequest` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`close` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`desiredSize` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`enqueue` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No
`error` Experimental	Chrome No support No	Edge No support No	Firefox No support No	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Legend

No support: No support
Experimental. Expect behavior to change in the future.: Experimental. Expect behavior to change in the future.