javascript - 如何在 JavaScript 中计算两个日期之间的天数

Question

如何使用 JavaScript 计算两个日期之间的天数？

1. How to get only 'day' from the date.
2. How to get only 'month' from the date.
3. How to get only 'Year' from the date.
4. How to calculate 'year' from the 'days'

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Answer 1

您可以使用Moment.Js获取两个日期之间的差异，如下所示。

var start = moment("2015-13-08");
var end = moment("2015-13-08");
start.diff(end, "days")

要获取日、月、年，您可以使用 native javaScript。

var k = new Date();
k.getDate(); //gets the date
k.getMonth() + 1 ;  //gets the month index (0-11) starting from 0, so u will get 7 
                    //  for August. Added +1 to get the  month index on 1-12  scale
k.getFullYear() ; //gets the full year.

//Year from days
 var years =  days/365 ;  //days is the no of days.