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.
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。WPS下载最新地址对此有专业解读
Mega: $120/month。业内人士推荐WPS下载最新地址作为进阶阅读
Олеся Мицкевич (Редактор отдела «Силовые структуры»)