Wembley Stadium
Web streams has no synchronous path. Even if your source has data ready and your transform is a pure function, you still pay for promise creation and microtask scheduling on every operation. Promises are fantastic for cases in which waiting is actually necessary, but they aren't always necessary. The new API lets you stay in sync-land when that's what you need.
，这一点在搜狗输入法2026中也有详细论述
SpaceX rocket debris crashes into Poland
stack.pop(); // 弹出无效候选值