ByteLengthQueuingStrategy.ByteLengthQueuingStrategy()

The ByteLengthQueuingStrategy() constructor creates and returns a ByteLengthQueuingStrategy object instance.

var byteLengthQueuingStrategy = new ByteLengthQueuingStrategy({highWaterMark});

{highWaterMark}

An object containing a highWaterMark property. This is a non-negative integer defining the total number of chunks that can be contained in the internal queue before backpressure is applied.

An instance of the ByteLengthQueuingStrategy object.

None.

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

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

var size = queuingStrategy.size(chunk);