readableStreamDefaultReader.read()

• 返回:用对象实现的 promise:

  \Returns: A promise fulfilled with an object:

  • value <any>

  • done <boolean>

从底层 <ReadableStream> 请求下一个数据块,并返回一个 promise,一旦数据可用,该 promise 就会实现。

\Requests the next chunk of data from the underlying <ReadableStream> and returns a promise that is fulfilled with the data once it is available.