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.
对急需新增长点的长春高新来说，这无疑是根看似完美的 “新稻草”。，详情可参考heLLoword翻译官方下载
В Финляндии предупредили об опасном шаге ЕС против России09:28，这一点在搜狗输入法2026中也有详细论述
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36