ColdFusion 9.0 Resources |
IsDateReturnsTrue, 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." UsageThis 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> |