Function CreateWritableStream

examples/io/streams/modules/streams.js:2312–2319

(startAlgorithm, writeAlgorithm, closeAlgorithm, abortAlgorithm, highWaterMark = 1, sizeAlgorithm = () => 1)

// 5.5.1 Working with writable streams
function CreateWritableStream(startAlgorithm, writeAlgorithm, closeAlgorithm, abortAlgorithm, highWaterMark = 1, sizeAlgorithm = () => 1) {
	assert(IsNonNegativeNumber(highWaterMark) === true);
	const stream = new WritableStream(WritableStreamBrand.token);
	InitializeWritableStream(stream);
	const controller = new WritableStreamDefaultController(WritableStreamDefaultControllerBrand.token);
	SetUpWritableStreamDefaultController(stream, controller, startAlgorithm, writeAlgorithm, closeAlgorithm, abortAlgorithm, highWaterMark, sizeAlgorithm);
	return stream;
}
function AcquireWritableStreamDefaultWriter(stream) {
	return new WritableStreamDefaultWriter(stream.self, WritableStreamDefaultWriterBrand.token);
}