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Promise.all 的promise是为什么是并行执行的 #49

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boyan1010 opened this issue Aug 27, 2019 · 0 comments

boyan1010 commented Aug 27, 2019

Promise.all 那个chapter中，有写到：传递给 Promise.all 的promise并不是一个个的顺序执行的，而是同时开始、并行执行的。不是很理解这个部分。
js是单线程的，难道不应该是并发的么？

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