Manipulating Dates

[gingerj]

Hi ya,

I'm having trouble working with the date object. I'm trying to add seven to the current date, but if I do say something like:

var forwardDate = currentDate+7;

That gives me the wrong date, if the date is greater than say 31, as then it won't be even a day in the calender.

Is there a way to make sure that if the date rolls past 31 it'll go down to the 1st or something?

I hope I make sense....

[gingerj]

I've also tried another method of grabbing the entire date string and turning it into an array but that causes and error and I dont know why.

Err I'm well confused

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

var testStr = myDate;
testStr = testStr.split(' ');
document.write("<br/>");
var arrayIndex;

for (arrayIndex in testStr)
	{
		document.write(testStr[arrayIndex] + "<br/>");
	}

[mrhoo]

When you get a date from a Date object you get an integer,
it no longer 'knows' anything about the date object except
for the number of the date.

To add a day to a date and return a new date you need
to increment the object and then read the new value:

I work with dates enough to make adding (or subtracting)
days and parts of days a method for all Dates, though you can use the same
code in a function call:

Date.prototype.addpartDay= function(n){
		if(!n) n= 1;
		n*=(86400000);
		var d= (this.getTime()+n);
		return  new Date(d);
	};

Or to add whole days:

	Date.prototype.addDays= function(n,boo){
		if(!n) n= 1;		
		var d= this.setDate(this.getDate()+n)
		if(boo) d= d.toUTCString();
		return d;
	};

[gingerj]

I've kinda worked out a work around solution but it doesn't work?

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

var testStr = myDate;
testStr = testStr.split(' ');
document.write("<br/>");
var arrayIndex;

for (arrayIndex in testStr)
	{
		document.write(testStr[arrayIndex] + "<br/>");
	}

[Charles]

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

Is the correct way to add five days to the current date. If you try adding ticks you'll run afoul of Daylight Savings Time.

You don't need to be playing around with the string version of the date unless you are up to something strange. What exactly are you up to?

[gingerj]

i need to split the date object.... i thought that was self-evident, and then prepoluate a form.

[Charles]

You want to use the various methods of the Date object to populate the form. Methods like Date.getMonth and Date.getFullYear.

[Kor]

What about?:

<script type="text/javascript">
var plus=7;
var today=new Date();
today.setTime(today.getTime()+(1000*60*60*24*plus))
alert(today)
</script> 

[Charles]

As I mentioned above, in some parts of the world that will go awry twice a year.

[James Gatka]

gingerj:

Please check your private messages.