Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The CountQueuingStrategy() constructor creates and returns a CountQueuingStrategy object instance.
CountQueuingStrategy()
Syntax
new CountQueuingStrategy(highWaterMark)
Parameters
-
highWaterMark -
An object containing a
highWaterMarkproperty. This is a non-negative integer defining the total number of chunks that can be contained in the internal queue before backpressure is applied.
Return value
An instance of the CountQueuingStrategy object.
Exceptions
None.
Examples
const queuingStrategy = new CountQueuingStrategy({ highWaterMark: 1 }); const writableStream = new WritableStream({ // Implement the sink write(chunk) { ... }, close() { ... }, abort(err) { console.log("Sink error:", err); } }, queuingStrategy); var size = queuingStrategy.size();
Specifications
| Specification |
|---|
| Streams Standard # ref-for-cqs-constructor① |
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 | |
CountQueuingStrategy |
52
|
16
|
65
|
No
|
39
|
10.1
|
52
|
52
|
65
|
41
|
10.3
|
6.0
|
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https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy/CountQueuingStrategy
