I knew as soon as I sent that that I missed a couple that don't do that...
always exceptions to any rule. Sigh.
Plus, the iif() function does it recursively, so... no, it's not a hard and
fast rule, but for the majority (that fair? ;) of functions, that is the
case.
Truman
-----Original Message-----
From: Don Vawter [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 24, 2000 11:18 AM
To: [EMAIL PROTECTED]
Subject: Re: IsDefined() Problem
Truman,
Applies to MOST but not ALL functions. isarray , isstruct, structkeyexists
come to mind as exceptions
----- Original Message -----
From: "Truman Esmond III" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 24, 2000 9:43 AM
Subject: RE: IsDefined() Problem
> The reason the quotes are there is that you want to check the existence of
> the NAME of the var, not the resolved value of your variable as the name
of
> the variable you are checking for... If you were to use
> IsDefined(attributes.myvar) and the variable was NOT defined, you would
get
> an error because CF tries to evaluate the variable name inside the
function
> brackets, then determine if htere is a var name with the evaluated value.
> The IsDefined("attributes.myvar") way checks to see if the variable scoped
> and named "attributes.myvar" exists, which (generally) is how the function
> is used.
> This is a handy lesson to learn, as it applies to all the CF functions.
> Hope that makes sense!
> Truman
>
> -----Original Message-----
> From: Paul Johnston [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 24, 2000 9:02 AM
> To: Cf-Talk
> Subject: RE: IsDefined() Problem
>
>
> Figured it out (taken me months!)
>
> I need to put quotes in, which seems a bit irish to me as all other
> functions (those I can think of off the top of my head) you don't put the
> quotes in when putting in a variable.
>
> Sorry to bother you!
>
> Paul
>
>
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