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desiredSize getter property of the
ReadableStreamDefaultController interface returns the desired size required to fill the stream's internal queue.
var desiredSize =readableStreamDefaultControllerInstance.desiredSize;
An integer. Note that this can be negative if the queue is over-full.
The A readable stream with an underlying push source and backpressure support example in the spec provides a good example of using
desiredSize to manually detect when the stream is full and apply backpressure, and also of using
ReadablestreamDefaultController.error() to manually trigger a stream error if another part of the system it relies on fails.
The definition of 'desiredSize' in that specification.
|Living Standard||Initial definition.|
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