User Guide

538 Chapter 3: ColdFusion Functions
IsLeapYear
Description
Determines whether a year is a leap year.
Returns
True, if year is a leap year; otherwise, False.
Category
Date and time functions, Decision functions
Function syntax
IsLeapYear(year)
See also
DaysInYear
Parameters
Example
<h3>IsLeapYear Example</h3>
<cfif IsDefined("FORM.theTestValue")>
<cfif IsLeapYear(FORM.theTestValue)>
<h3>The year value <cfoutput>#DE(FORM.theTestValue)#</cfoutput> is a Leap
Year</h3>
<cfelse>
<h3>The year value <cfoutput>#DE(FORM.theTestValue)#</cfoutput> is not a
Leap Year</h3>
</cfif>
</cfif>
<form action = "isLeapYear.cfm">
<p>Enter a year value, and find out whether it is a Leap Year.
<p><input type = "Text" name = "TheTestValue" value = "
<cfoutput>#Year(Now())#</cfoutput>">
<input type = "Submit" value = "Is it a Leap Year?" name = "">
</form>
Parameter Description
year Number representing a year