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.
Ранее стало известно, что большинству россиян не хватает накоплений на первоначальный взнос по ипотеке.。业内人士推荐WPS官方版本下载作为进阶阅读
// Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.。业内人士推荐搜狗输入法2026作为进阶阅读
// console.log(nextLargerNodes(head)); // [5,5,0]
// 易错点3：忘记stack.length判断 → 访问stack[-1]会报错