Solved

JAVASCRIPT EQUIVALENT OF "DATEDIFF" IN ASP?

Posted on 2004-04-01
7
659 Views
Last Modified: 2008-02-01
Hi experts,

I need to compare 2 dates in javascript to see which one is earlier. In ASP I would do this:

value = dateDiff("d","10/04/2004","09/04/2004")

This would produce a value of "-1"


value = dateDiff("d","09/04/2004","10/04/2004")

This would produce a value of "1"


I need to do the same thing in Javascript. Does anybody have an example of how I can do this?




PJORDANNA






0
Comment
Question by:pjordanna
7 Comments
 
LVL 63

Expert Comment

by:Zvonko
ID: 10731737
Like this:

<script>
value = dateDiff("d","04/10/2004","04/09/2004");
alert(value)

value = dateDiff("d","04/09/2004","04/10/2004");
alert(value);


function dateDiff(dType, date1, date2){
  divider = 1000;
  if(dType=="d") divider = 24*60*60*1000;
  return ((new Date(date2))-(new Date(date1)))/divider;
}
</script>

0
 
LVL 63

Expert Comment

by:Zvonko
ID: 10731765
Or with date format adaption:

<script>
value = dateDiff("d","10/04/2004","09/04/2004");
alert(value)

value = dateDiff("d","09/04/2004","10/04/2004");
alert(value);


function dateDiff(dType, date1, date2){
  divider = 1000;
  if(dType=="d") divider = 24*60*60*1000;
  return (getDate(date2)-getDate(date1))/divider;
}

function getDate(dateValue){
  dPart = dateValue.split("/");
  return new Date(dPart[2], dPart[1], dPart[0]);
}
</script>

0
 
LVL 12

Expert Comment

by:venkateshwarr
ID: 10731772
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 31

Accepted Solution

by:
GwynforWeb earned 500 total points
ID: 10731807
try this

<script>
function dateDiff(d1,d2){
D1=new Date(d1)
D2=new Date(d2)
if (D1.getTime() > D2.getTime()) return -1
    else return 1
}


alert( dateDiff("10/04/2004","09/04/2004") )
alert( dateDiff("09/04/2004","10/04/2004") )
</script>
0
 
LVL 63

Expert Comment

by:Zvonko
ID: 10731838
Here also for hours minutes and seconds:

<script>
value = dateDiff("d","10/04/2004","09/04/2004");
alert(value)

value = dateDiff("d","09/04/2004","10/04/2004");
alert(value);


function dateDiff(dType, date1, date2){
  interval = 1000;
  switch(dType.toLowerCase()){
    case("d"): interval = 24*60*60*1000; break;
    case("h"): interval = 60*60*1000; break;
    case("m"): interval = 60*1000; break;
  }
  return (getDate(date2)-getDate(date1))/interval;
}

function getDate(dateValue){
  dPart = dateValue.split("/");
  return new Date(dPart[2], dPart[1], dPart[0]);
}
</script>

0
 

Author Comment

by:pjordanna
ID: 10732576
GwynforWeb,

That's perfect. Exeactly what I needed.




PJORDANNA
0
 
LVL 31

Expert Comment

by:GwynforWeb
ID: 10739637
Thanks, GfW
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows how to create and access 2-dimensional arrays in JavaScript.  It includes a tutorial in case you are just trying to "get your head wrapped around" the concept and we'll also look at some useful tips for more advanced programmers. …
I've been trying to accomplish this for a while and it just struck me yesterday how to accomplish this task. I have done searches all over the internet looking for ways to email pages from my applications and finally I have done it!!! Every single s…
The viewer will learn the basics of jQuery, including how to invoke it on a web page. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery.: (CODE)
The viewer will learn the basics of jQuery including how to code hide show and toggles. Reference your jQuery libraries: (CODE) Include your new external js/jQuery file: (CODE) Write your first lines of code to setup your site for jQuery…

914 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now