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.
No-one has yet taken responsibility for what happened.
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「像鬼一樣工作」：台灣外籍移工為何陷入「強迫勞動」處境
// In a loop, this can exhaust connection pools