Extending Javascript Date functions

I often come across the need for the following functionality in the Date object in javascript. I believe these are basic functionality that should have been there, but then who cares!! anyone can extend these. So in a series of blogs i will be extending the Date object using the javascript prototype :-)

Functionality	Sample
Date.AddDay	Date.AddDays Javascript

 

Script to AddDays to Date object in javascript

Date.prototype.AddDays = function(noOfDays) {
    this.setTime(this.getTime() + (noOfDays * (1000 * 60 * 60 * 24)));
    return this;
}

 

Sample: