Have you tried to see if the element is undefined or null?
On Mon, Dec 7, 2009 at 2:53 PM, Derek Hedstrom <[email protected]>wrote:
>
> Help!
>
> I need to compare the value of an array element to another value, but the
> array element may not always exist. How can I check for this?
>
> I have tried ArrayIsDefined(), and IsDefined().
>
> ArrayIsDefined() gives me the following error:
> <cfoutput>#ArrayIsDefined(arSelected,3)#</cfoutput>
> Cannot access array element at position 3.
> The array has 2 indexes. Valid positions are from 1 to 2.
>
> Yeah, duh! That's what I am trying to find out!
>
> IsDefined doesn't seem to like array notation:
> <cfoutput>#IsDefined("arSelected[1]")#</cfoutput>
> Parameter 1 of function IsDefined, which is now arSelected[1], must be a
> syntactically valid variable name.
>
> TIA,
> Derek
>
>
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