javascript - 我怎样才能找到两次之间的差异

Question

如何在 JavaScript 中找到时间之间的差异？

这是我想出的伪代码

var firstTime = "20:24:00";
var secondTime = "20:00:52";
console.log(firstTime - secondTime);// 23:08 (23 minutes, 8 seconds)

标签： javascriptjquerytime

Answer 1

您可以使用new Date().setHours()从您拥有的时间开始日期，然后减去它们，从差异中创建一个新日期：

var firstTime = "20:24:00";
var secondTime = "20:00:52";

//                                 transform variables into parameters
let dateA = new Date().setHours(...(firstTime.split(":")));
let dateB = new Date().setHours(...(secondTime.split(":")));

let diff = new Date(dateA-dateB);

console.log(`Differnce: ${diff.getUTCHours()}:${diff.getUTCMinutes()}:${diff.getUTCSeconds()}`);