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ByteLengthQueuingStrategy - Web APIs 编辑

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);