readableStream.locked

• 类型：<boolean> 如果该 <ReadableStream> 有活动读取器，则设置为 true。

  ¥Type: <boolean> Set to true if there is an active reader for this <ReadableStream>.

readableStream.locked 属性默认为 false，当有活动读取器使用流的数据时切换为 true。

¥The readableStream.locked property is false by default, and is switched to true while there is an active reader consuming the stream's data.