CountQueuingStrategy()

Draft: This page is not complete.

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.

Syntax

var countQueuingStrategy = new CountQueuingStrategy({highWaterMark});

Parameters

{highWaterMark}

An object containing a highWaterMark property. 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

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
59
16
65
No
46
10.1
59
59
65
43
10.3
7.0

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https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy/CountQueuingStrategy