为什么这个函数不返回 > 的随机时间?现在起? [英] Why do this function doesn't return a random time that's > from now?

问题描述

我正在尝试使用以下函数(取自另一个答案)来获得 > 的随机时间.从现在开始和每小时范围内.

I'm trying to use following function (taken from an another answer) to get a random time that's > from now and within a hourly range.

我不知道需要放入 startHour

我的时间是美国东部时间下午 4 点，我在那里放了 16 个，在 hourRange 中放了 5 个，但它给我的值小于那个.

My time is 4 PM EST US and I put 16 there and 5 to the hourRange but it gives me values that's less than that.

function randomTime(rangeOfDays = 0, startHour, hourRange){
    var today = new Date(Date.now());
    return new Date(today.getYear()+1900,today.getMonth(), today.getDate()+Math.random() *rangeOfDays, Math.random()*hourRange + startHour, Math.random()*60)
}

该答案的链接，答案

推荐答案

这里只使用 Ticks 来解决问题.哪个更容易管理.

Here this deals with the problem by working with Ticks only. Which is easier to manage.

const getRandomTime = (offsetHour = 0, rangeInHours = 2) => {
  const curTicks = Date.now() + 0 * (offsetHour*60*60*1000);
  const addTicks = (Math.random()*rangeInHours)*60*60*1000;
  
  return new Date(curTicks + addTicks);

};

console.log((new Date()));
for(let i=0; i<10;i++) {
  console.log( getRandomTime(1, 2+i));
}

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