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区别 #566

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DanielLin0516 opened this issue Mar 12, 2022 · 0 comments

DanielLin0516 commented Mar 12, 2022

setTimeout是一个宏任务
Promise是个异步任务，防止回调地狱，写法更具观赏性
async await 是根据generator的一个语法糖（很多人误以为是promise的语法糖），我们利用async await可以更好的用同步代码编写异步任务

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