const reader = stream.getReader();
BYOB (bring your own buffer) reads were designed to let developers reuse memory buffers when reading from streams — an important optimization intended for high-throughput scenarios. The idea is sound: instead of allocating new buffers for each chunk, you provide your own buffer and the stream fills it.
，这一点在搜狗输入法2026中也有详细论述
200MP main, 50MP ultrawide, 10MP 3x telephoto, 50MP 5x periscope telephoto
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