Web streams use a locking model to prevent multiple consumers from interleaving reads. When you call getReader(), the stream becomes locked. While locked, nothing else can read from the stream directly, pipe it, or even cancel it – only the code that is actually holding the reader can.
HTMLMediaElement: playbackRate property — MDN Web Docs，这一点在同城约会中也有详细论述
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devices as separate endpoints, and the 3770 interleaved their respective
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