> The following code throws a syntax error:
>
> <cfset aStruct=StructNew()>
> <cfset aStruct.aField="something">
> <cfif IsDefined("aStruct[aField]")>
> aStruct[aField] is defined
> </cfif>
>
> Is this just some CF quirk that IsDefined doesn't like
> brackets or is there some good reason for this?
You could call it a quirk, I guess. When you use array notation, you're
indicating to CF that you're not referencing a variable per se, but rather a
member of a complex variable. If you use dot notation, it's clear that
you're referencing a variable within a structure, I suppose, which entails
checking the existence of both the structure and the member variable.
You could rewrite this test to look like this:
<cfif IsDefined("aStruct") and StructKeyExists(aStruct, "aField")>
This clearly describes the two tests you're running.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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