function

stream.web.ReadableStreamTee

stream: ReadableStream<R>,

cloneForBranch2?: boolean

): [ReadableStream<R>, ReadableStream<R>];

Runs the WHATWG ReadableStreamTee abstract operation on stream.

This differs from readableStream.tee() only when cloneForBranch2 is true. The tee() method always passes false, while other web platform specifications, such as Fetch body cloning, pass true so that the second branch receives cloned chunks and consumption of one branch cannot mutate chunks seen by the other.

@param cloneForBranch2

When true, chunks enqueued into the second branch are cloned from chunks enqueued into the first branch. Default: false.

@returns

Two ReadableStream branches.

Referenced types

interface ReadableStream<R = any>

readonly locked: boolean
cancel(
reason?: any
): Promise<void>;
getReader(
options: { mode: 'byob' }
): ReadableStreamBYOBReader;
getReader(): ReadableStreamDefaultReader<R>;
getReader(
options?: ReadableStreamGetReaderOptions
): ReadableStreamReader<R>;
pipeThrough<T>(
transform: ReadableWritablePair<T, R>,
options?: StreamPipeOptions
): ReadableStream<T>;
pipeTo(
destination: WritableStream<R>,
options?: StreamPipeOptions
): Promise<void>;
tee(): [ReadableStream<R>, ReadableStream<R>];
values(
options?: ReadableStreamIteratorOptions
): ReadableStreamAsyncIterator<R>;