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CountQueuingStrategy.size

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This page is not complete.

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

The size() method of the CountQueuingStrategy interface always returns 1, so that the total queue size is a count of the number of chunks in the queue.

Syntax

var size = countQueuingStrategyInstance.size();

Parameters

None.

Return value

1.

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

Specification Status Comment
Streams
The definition of 'size' in that specification.
Living Standard Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 59 16 57
Disabled
57
Disabled
Disabled From version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No 46 ?
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 59 59 16 57
Disabled
57
Disabled
Disabled From version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true). To change preferences in Firefox, visit about:config.
46 ? 7.0

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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/CountQueuingStrategy/size