TransformStreamDefaultController: enqueue() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since June 2022.
Note: This feature is available in Web Workers.
The enqueue() method of the TransformStreamDefaultController interface enqueues the given chunk in the readable side of the stream.
For more information on readable streams and chunks see Using Readable Streams.
Syntax
enqueue(chunk)
Parameters
chunk-
The chunk being queued. A chunk is a single piece of data. It can be any type of data, and a stream can contain chunks of different types.
Return value
None (undefined).
Exceptions
TypeError-
The stream is not readable. This might occur if the stream is errored via
controller.error(), or when it is closed without its controller'scontroller.close()method ever being called.
Examples
In this example an encoded chunk is passed to the queue using the enqueue() method.
const textEncoderStream = new TransformStream({
transform(chunk, controller) {
controller.enqueue(new TextEncoder().encode(chunk));
},
flush(controller) {
controller.terminate();
},
});
Specifications
| Specification |
|---|
| Streams # ts-default-controller-enqueue |
Browser compatibility
| desktop | mobile | server | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
enqueue
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support