ByteLengthQueuingStrategy: size() method

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

Syntax

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
);

const size = queueingStrategy.size(chunk);

Specifications

Specification
Streams Standard
# blqs-size

Browser compatibility

BCD tables only load in the browser

See also