ByteLengthQueuingStrategy.size()

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

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

Syntax

var size = byteLengthQueuingStrategy.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

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

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

var size = queueingStrategy.size(chunk);

Specifications

Specification
Streams Standard (Streams) # blqs-size

Browser compatibility

BCD tables only load in the browser