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.
Persevering with an overly challenging route is an experience some climbers will be able to relate to. Mountaineers say they sometimes get overcome by what's known as summit fever - the desire to reach the top - even if they have concerns about their climb. They might have spent months planning their trip - and considerable amounts of money, too.
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Мерц резко сменил риторику во время встречи в Китае09:25
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