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ForeveHG / Frontend-Daily-Interview

学习,尝试回答一些前端面试题
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23. 实现一个sleep函数 #23

Open ForeveHG opened 4 years ago

ForeveHG commented 4 years ago

比如sleep(1000)意味着等待1000毫秒，可以从Promise,Generator,Async/await等角度

ForeveHG commented 4 years ago

  1. 循环阻塞主线程，真正意义上的sleep

  2. 定时器

  3. Promise+定时器

    
function sleep(delay) {
return new Promise(resolve => {
setTimeout(resolve,delay)
})
}

  4. async + Promise + 定时器