CountQueuingStrategy
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2019.
Note: This feature is available in Web Workers.
The CountQueuingStrategy interface of the Streams API provides a built-in chunk counting queuing strategy that can be used when constructing streams.
Constructor
CountQueuingStrategy()-
Creates a new
CountQueuingStrategyobject instance.
Instance properties
CountQueuingStrategy.highWaterMarkRead only-
The total number of chunks that can be contained in the internal queue before backpressure is applied.
Instance methods
CountQueuingStrategy.size()-
Always returns
1.
Examples
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();
Specifications
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CountQueuingStrategy() constructor
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highWaterMark
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size
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- Has more compatibility info.