Instead of yielding one chunk per iteration, streams yield Uint8Array[]: arrays of chunks. This amortizes the async overhead across multiple chunks, reducing promise creation and microtask latency in hot paths.
bucketArr[k + 1] = bucketArr[k];
，详情可参考51吃瓜
What if you create a truly unique routing profile that's wildly different from the common ones for which shortcuts were pre-calculated? The system is smart. If it detects that too many shortcuts (~50, for example) need on-the-fly recalculation and deviate significantly, it might determine that falling back to the original, comprehensive A* algorithm for the entire route would actually be faster than doing many small, heavily modified A* calculations.
audioElement.currentTime = 0;
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