jquery - How to subtract two angularjs date variables

Question

I am fairly new to angularjs, but here it goes. I am able two dates through angularjs in the form dd/mm/yyyy, but what I need to do is somehow subtract the two dates to get the difference in days between the two. I created a jquery function to do this, but I don't know how to pass in the two dates to the function. So I was wondering if there was a different way to go about this?

I am trying to set up a trigger system depending on the number of days in between the two dates for certain things to be stylized. For example if it's within 10 days I want it to use style 1 and if its within 20 days use style 2 and so on.

Answer 1

Basic javascript way:

var d1 = new Date('01/16/2013');
var d2 = new Date('02/26/2013');
var milliseconds = d2-d1;
var seconds = milliseconds / 1000;
var minutes = seconds / 60;
var hours = minutes / 60;
var days = hours / 24;

Using one of the Date libraries (such as moment.js):

var d1 = moment("01/16/2013");
var d2 = moment("02/26/2013");
var days = moment.duration(d2.diff(d1)).asDays();