Last updated on
Oct 27, 2023
Description
Determines whether a string or Java object can be converted to a date/time value.
Returns
True, if string can be converted to a date/time value; False, otherwise. ColdFusion converts the Boolean return value to its string equivalent, "Yes" or "No."
Category
Syntax
IsDate(string)
See also
Parameters
Parameter |
Description |
---|---|
string |
A string or a variable that contains one. |
Usage
This function checks against U.S. date formats only. For other date support, see LSDateFormat.A date/time object falls in the range 100 AD-9999 AD.
Example
<h3>IsDate Example</h3> <cfif IsDefined("FORM.theTestValue")> <cfif IsDate(FORM.theTestValue)> <h3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> is a valid date</h3> <cfelse> <h3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> is not a valid date</h3> </cfif> </cfif> <form action = "isDate.cfm" method="post"> <p>Enter a string, find whether it can be evaluated to a date value. <p><input type = "Text" name = "TheTestValue" value = "<cfoutput>#Now()# </cfoutput>"> <input type = "Submit" value = "Is it a Date?" name = ""> </form>