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ByteLengthQueuingStrategy: size() method

The size() method of the ByteLengthQueuingStrategy interface returns the given chunk's byteLength property.

Syntax

js

size(chunk)

Parameters

chunk

A chunk of data being passed through the stream.

Return value

An integer representing the byte length of the given chunk.

Examples

js

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

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

const size = queueingStrategy.size(chunk);

Specifications

Specification
Streams Standard
# blqs-size

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
size 52 16 65 No 39 10.1 52 52 65 41 10.3 6.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/ByteLengthQueuingStrategy/size