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第172题:JS 异步笔试题,请写出下面代码的运行结果(哔哩哔哩) #471

@sisterAn

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@sisterAn
var date = new Date() 

console.log(1, new Date() - date) 

setTimeout(() => {
    console.log(2, new Date() - date)
}, 500) 

Promise.resolve().then(console.log(3, new Date() - date)) 

while(new Date() - date < 1000) {} 

console.log(4, new Date() - date)

求上面的输出顺序和输出值,为什么

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