Javascript: Get Date Difference And Convert Months To Years

If given two dates in the MM/YY format how can I get the difference in years and months alone using a function. Example: the result of 03/10 & 01/14 would be 3 years and 10 mon

Solution 1:

I would highly recommend momentjs for date manipulation in JavaScript.

var start  = moment("03/10", "MM/YY"),
    finish = moment("01/14", "MM/YY");

var diff     = finish.diff(start),
    duration = moment.duration(diff);

duration.years();  // 3
duration.months(); // 10

Enjoy momentjs. It makes your life so easy.

Solution 2:

You could parse the date and calculate it with milliseconds, but this is a quicker way.

var date1 = "03/10".split("/");
var date2 = "01/14".split("/");
var months = date2[0] - date1[0] + 12 * (date2[1] - date1[1]);
var result = Math.round(months / 12) + " years " + (months % 12) + " months";

You can swap the date strings on the first 2 lines with your variables, and you should be able to guess where you get the years and months out as numbers.