Not all streaming workloads involve I/O. When your source is in-memory and your transforms are pure functions, async machinery adds overhead without benefit. You're paying for coordination of "waiting" that adds no benefit.
When fetch() returns a response, the body is a ReadableStream. If you only check the status and don't consume or cancel the body, what happens? The answer varies by implementation, but a common outcome is resource leakage.
。关于这个话题，夫子提供了深入分析
“用发展的办法消除贫困根源”“一把钥匙开一把锁”
描述：给定链表 head，对于每个节点，查找其右侧第一个值严格大于它的节点。返回整数数组 answer，answer[i] 为第 i 个节点的下一个更大节点值；若无，则为 0。