Need help with JavaScript!

as_seen_on · 05-12-2006 10:25PM #1

I am an amateur, having some trouble with my javascript, I am trying to make a app that can tell you what year was a leap year ad what year wasnt.
As I have only started learning JavaScript last night I might not the greatest.
I was thinking that if I could get a operator that is odd or even that might help. So if anyone could advise me and help clean it up a bit that would be great

Help would really be appreciated.

<html>
<head>
<script type="text/javascript">
var leap = 4 
alert("Click OK")

var yes  = prompt("Enter a year to find out if that year was a leap year", "4")

leap     *= parseInt(yes)
alert("Even number= Leap year" + '\n' + "odd numbers=not a leap year" + '\n' + "OK go" + leap + "!!")
</script>
</head>
<body>
</body>
</html>

is_that_so · 05-12-2006 10:34PM

An explanation on Leap Years. You might want to look at mod or remainder. E.g. 20 % 2=0
Google for "javascript examples tutorials" . Tons of stuff out there.

as_seen_on · 05-12-2006 10:45PM

is_that_so wrote:

An explanation on Leap Years. You might want to look at mod or remainder. E.g. 20 % 2=0
Google for "javascript examples tutorials" . Tons of stuff out there.

could you show me what you mean by 20 % 2=0, I dont really understand the % part.

aidan_walsh · 05-12-2006 10:58PM

as_seen_on wrote:

could you show me what you mean by 20 % 2=0, I dont really understand the % part.

The modulo operator (%) divides the two numbers and returns the remainder, such as 20%2=0 above, or 14%5=4 (5 goes into 14 twice with 4 remaining), etc.

is_that_so · 05-12-2006 11:26PM

Opps sorry. Assuming too much.:o

boondog · 12-12-2006 10:47AM

Divide the given 4-digit year by 4 and/or 400. Any result where rest = zero is a leapyear.

Need help with JavaScript!

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