for (const chunk of chunks) {
The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.，更多细节参见heLLoword翻译官方下载
，详情可参考旺商聊官方下载
更多精彩内容，关注钛媒体微信号（ID：taimeiti），或者下载钛媒体App
Must achieve = 99% accuracy on 10,000 random test pairs (held-out, fixed seed)，详情可参考旺商聊官方下载