Javascript - 将 DD:HH:MM:SS 转换为毫秒 [英] Javascript - Convert DD:HH:MM:SS to milliseconds

问题描述

我见过很多转换日期的函数，但找不到任何关于如何将 Days:Hours:Minutes:Seconds 转换为毫秒的具体信息.

I've seen a lot of functions to convert dates around but couldn't find anything specific on how to convert Days:Hours:Minutes:Seconds to milliseconds.

所以这是我为帮助你们而制作的一个基本功能.如果您正在编写秒表、时钟或类似的东西，这将非常有用.

So here is a basic function I've made to help you guys out. This is useful if you're coding a stopwatch, clock or anything like that.

推荐答案

通常我看到这是在不使用实用程序函数的情况下内联完成的，但是如果您要创建一个实用程序，让我们使其具有可扩展性.

Normally I've seen this done inline without using a utility function, but if you're going to create a util let's make it extensible.

1. 我不同意 Array 的论点，很难记住什么代表什么.除非你只做天/小时/分钟/秒，否则这可能会让人感到困惑.此外，除非您总是使用每个参数，否则这会变得很麻烦.

1. I disagree with the arguments Array, it's difficult to remember what represents what. Unless you're only doing day/hour/minute/second, this can get confusing. Additionally, unless you're always using every parameter this becomes cumbersome.

零值是不正确的(为任何值传递 0 会导致它不正确)

It's incorrect for zero values (passing 0 for any value causes it to be incorrect)

const conversionTable = {
  seconds: 1000,
  minutes: 60*1000,
  hours: 60*60*1000,
  days: 24*60*60*1000,
};

const convertTime = (opts) => 
  Object.keys(opts).reduce((fin, timeKey) => (
    fin + opts[timeKey] * conversionTable[timeKey]
  ), 0)

console.log(convertTime({
  days: 5,
  hours: 4,
  minutes: 2,
  seconds: 19,
}));

console.log(convertTime({seconds: 1}));

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