The CountQueuingStrategy
interface of the Streams API provides a built-in chunk counting queuing strategy that can be used when constructing streams.
The CountQueuingStrategy
interface of the Streams API provides a built-in chunk counting queuing strategy that can be used when constructing streams.
CountQueuingStrategy()
Creates a new CountQueuingStrategy
object instance.
CountQueuingStrategy.highWaterMark
Read only
The total number of chunks that can be contained in the internal queue before backpressure is applied.
CountQueuingStrategy.size()
Always returns 1
.
js
const queueingStrategy = new CountQueuingStrategy({ highWaterMark: 1 }); const writableStream = new WritableStream( { // Implement the sink write(chunk) { // … }, close() { // … }, abort(err) { console.log("Sink error:", err); }, }, queueingStrategy, ); const size = queueingStrategy.size();
Specification |
---|
Streams Standard # cqs-class |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
CountQueuingStrategy |
52 | 16 | 65 | No | 39 | 10.1 | 52 | 52 | 65 | 41 | 10.3 | 6.0 |
CountQueuingStrategy |
52 | 16 | 65 | No | 39 | 10.1 | 52 | 52 | 65 | 41 | 10.3 | 6.0 |
highWaterMark |
52 | 16 | 65 | No | 39 | 10.1 | 52 | 52 | 65 | 41 | 10.3 | 6.0 |
size |
52 | 16 | 65 | No | 39 | 10.1 | 52 | 52 | 65 | 41 | 10.3 | 6.0 |
© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy