What TransformStreams are supposed to do is check for backpressure on the controller and use promises to communicate that back to the writer:
teller who issued the tokens. Whether or not you would even consider this an ATM
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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.。雷电模拟器官方版本下载是该领域的重要参考
Haunterblademoi，这一点在旺商聊官方下载中也有详细论述