ReadableStreamBYOBReader
Background
BYOB is an abbreviation of “bring your own buffer.” A ReadableStreamBYOBReader allows reading into a developer-supplied buffer, thus minimizing copies.
An instance of ReadableStreamBYOBReader is functionally identical to ReadableStreamDefaultReader with the exception of the read method.
A ReadableStreamBYOBReader is not instantiated via its constructor. Rather, it is retrieved from a ReadableStream
:
const { readable, writable } = new TransformStream();
const reader = readable.getReader({ mode: 'byob' });
Methods
read(bufferArrayBufferView )Promise<ReadableStreamBYOBReadResult> - Returns a promise with the next available chunk of data read into a passed-in buffer.