javascript get number of month between two dates code example

Example 1: get month in two digit in javascript date

("0" + (this.getMonth() + 1)).slice(-2)

Example 2: javascript after 2 months date find

var newDate = new Date(date.setMonth(date.getMonth()+8));

var jan312009 = new Date(2009, 0, 31);
var eightMonthsFromJan312009  = jan312009.setMonth(jan312009.getMonth()+8);
//@SUJAY