The read-only CountQueuingStrategy.highWaterMark
property returns the total number of chunks that can be contained in the internal queue before backpressure is applied.
The read-only CountQueuingStrategy.highWaterMark
property returns the total number of chunks that can be contained in the internal queue before backpressure is applied.
An integer representing a number of chunks.
js
const queueingStrategy = new CountQueuingStrategy({ highWaterMark: 1 }); const readableStream = new ReadableStream( { start(controller) { // … }, pull(controller) { // … }, cancel(err) { console.log("stream error:", err); }, }, queuingStrategy, ); const size = queuingStrategy.size(chunk); console.log(`highWaterMark value: ${queuingStrategy.highWaterMark}$`);
Specification |
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Streams Standard # ref-for-cqs-high-water-mark① |
Desktop | Mobile | |||||||||||
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Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
highWaterMark |
52 | 16 | 65 | No | 39 | 10.1 | 52 | 52 | 65 | 41 | 10.3 | 6.0 |
CountQueuingStrategy()
constructor
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https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy/highWaterMark