ByteLengthQueuingStrategy

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The ByteLengthQueuingStrategy interface of the Streams API provides a built-in byte length queuing strategy that can be used when constructing streams.

Constructor

ByteLengthQueuingStrategy()

Creates a new ByteLengthQueuingStrategy object instance.

Properties

None.

Methods

ByteLengthQueuingStrategy.size()

Returns the given chunk’s byteLength property.

Examples

const queueingStrategy = new ByteLengthQueuingStrategy({ highWaterMark: 1 });

const readableStream = new ReadableStream({
  start(controller) {
    ...
  },
  pull(controller) {
    ...
  },
  cancel(err) {
    console.log("stream error:", err);
  }
}, queueingStrategy);

var size = queueingStrategy.size(chunk);

Specifications

Specification
Streams Standard (Streams)
# blqs-class

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
ByteLengthQueuingStrategy
59
16
65
No
46
10.1
59
59
65
43
10.3
7.0
ByteLengthQueuingStrategy
59
16
65
No
46
10.1
59
59
65
43
10.3
7.0
highWaterMark
78
16
65
The property is defined on the instance instead of the prototype object. See bug 1684316.
No
65
No
78
78
65
The property is defined on the instance instead of the prototype object. See bug 1684316.
56
No
12.0
size
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/ByteLengthQueuingStrategy