CountQueuingStrategy
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
CountQueuingStrategy
object instance.
Instance properties
CountQueuingStrategy.highWaterMark
Read 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
Specification |
---|
Streams Standard # cqs-class |
Browser compatibility
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