Prototype ¬ Detail

author: sxdesign [+], Submitted: 02.27.03 6a • Last Edit: 02.27.03 7a

Date.prototype.getDateOffset = function(offset) {
	var retDate = new Date(this);
	retDate.setTime(retDate.getTime()+offset*86400000); // 86400000 represents a number of milliseconds each day haves
	return retDate;
}

usage

This is a very simple function that will give you a date object for ANY day offset from current date (or from any other date object). I've noticed that a lot of people are asking me about this, so I thought I should write it somewhere...

Usage is quite simple, as usual :)

newDateObject = oldDateObject.getDateOffset(-5);

this function will set a newDateObject to a date object, that holds data of 5 days ago from the oldDateObject... Or by example:

[code]
oldDateObject = new Date(); // getting current system date

trace("20 days ago was: " + oldDateObject.getDateOffset(-20));
trace("Yesterday was: " + oldDateObject.getDateOffset(-1));
trace("Today is: " + oldDateObject.getDateOffset(0));
trace("Tomorrow will be: " + oldDateObject.getDateOffset(1));
trace("For 5 days will be: " + oldDateObject.getDateOffset(5));
[/code]

This will return something like (this will hardly be the same at your place, but you get the picture):

20 days ago was: Fri Feb 7 15:11:19 GMT+0100 2003
Yesterday was: Wed Feb 26 15:11:19 GMT+0100 2003
Today is: Thu Feb 27 15:11:19 GMT+0100 2003
Tomorrow will be: Fri Feb 28 15:11:19 GMT+0100 2003
For 5 days will be: Tue Mar 4 15:11:19 GMT+0100 2003

hope it helps...