readableStreamBYOBReader.read(view)

• view <Buffer> | <TypedArray> | <DataView>

• 返回：用对象实现的 promise：

  ¥Returns: A promise fulfilled with an object:

  • value <ArrayBuffer>

  • 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.

不要将池化的 <Buffer> 对象实例传递给此方法。池化的 Buffer 对象是使用 Buffer.allocUnsafe() 或 Buffer.from() 创建的，或者通常由各种 node:fs 模块回调返回。这些类型的 Buffer 使用共享的底层 <ArrayBuffer> 对象，该对象包含来自所有池化的 Buffer 实例的所有数据。当 Buffer、<TypedArray> 或 <DataView> 传递给 readableStreamBYOBReader.read() 时，视图的底层 ArrayBuffer 被分离，使该 ArrayBuffer 上可能存在的所有现有视图无效。这可能会给你的应用带来灾难性的后果。

¥Do not pass a pooled <Buffer> object instance in to this method. Pooled Buffer objects are created using Buffer.allocUnsafe(), or Buffer.from(), or are often returned by various node:fs module callbacks. These types of Buffers use a shared underlying <ArrayBuffer> object that contains all of the data from all of the pooled Buffer instances. When a Buffer, <TypedArray>, or <DataView> is passed in to readableStreamBYOBReader.read(), the view's underlying ArrayBuffer is detached, invalidating all existing views that may exist on that ArrayBuffer. This can have disastrous consequences for your application.