ByteLengthQueuingStrategy()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since June 2022.
ByteLengthQueuingStrategy() 构造函数创建并返回一个 ByteLengthQueuingStrategy 对象实例。
语法
js
new ByteLengthQueuingStrategy(highWaterMark)
参数
highWaterMark-
一个包含
highWaterMark属性的对象。这个属性是一个非负整数，定义了在应用背压之前内部队列可以包含的分块的总数。
返回值
一个 ByteLengthQueuingStrategy 对象实例。
异常
无。
示例
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 = queuingStrategy.size(chunk);
规范
| Specification |
|---|
| Streams # blqs-constructor |