window.ReadableStreamDefaultController

See: Web APIs - ReadableStreamDefaultController

desiredSize : number

Returns the desired size to fill the controlled stream’s internal queue. It can be negative, if the queue is over-full.

close()

Closes the controlled readable stream. Consumers will still be able to read any previously-enqueued chunks from the stream, but once those are read, the stream will become closed.

Throws:

• TypeError thrown if the source is not a ReadableStreamDefaultController

enqueue(chunk)

Enqueues the given chunk in the controlled readable stream.

Throws:

• TypeError thrown if the source is not a ReadableStreamDefaultController

error(error)

Errors the controlled readable stream, making all future interactions with it fail with the given error.

Throws:

• TypeError thrown if the source object is not a ReadableStreamDefaultController