Introduction to events: event propagation — MDN Web Docs
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.
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Blazing Speed: The 100x average improvement means route calculations, especially for longer journeys, are now dramatically faster.
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