如何计算javascript中日期的第5个日期

Question

I have a date in a javascript variable

var cDate='07/21/2012'  `(mm/dd/YYY format)`

I need to find out the 5th day from the date in cDate Variable

ie newDate= '07/26/2012'

suppose if the cDate='07/28/2012' then newDate='08/2/2012' But I did know how. I have tried a lot and searched but my result is wrong.

Please replay

thanks in advance

Answer 1

myDate = new Date(2012, 07, 28)
new Date(myDate.getTime() + 5*24*60*60*1000);

OR extend the Date Class as

Date.prototype.addDays = function(days) {
    this.setDate(this.getDate() + days);
    return this;
};

Or you can even use this library. http://www.datejs.com/

Answer 2

Have you tried the following?

cDate = new Date(2012, 07, 28)
cDate.setDate(cDate.getDate() + 5);

Answer 3

please try this

var myDate=new Date();
myDate.setDate(myDate.getDate()+5);