Ahh drat, there I had a nice little example all worked out, and you come
along with something much more simple ;O)
Where do you keep getting these things from?
Anyway, I updated the example to reflect your input:
http://www.richardinfo.f2s.com/dynapi/Richard_Examples/Is_a_variable_defined
.html
Richard.
----- Original Message -----
From: "Michael B�rge" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: 18 May, 2001 12:33
Subject: Re: [Dynapi-Dev] Simple question...
> >> You could check if a variable has been declared (one that is declared
only
> >> in that file)
> >
> > As far as I know, such a trick is impossible in Javascript. If you try
to
> > check a variable that hasn't been declared (using "if (myVar)"), you get
an
> > error. I haven't found a way to be able to do that. If someone has the
> > clue, I would REALLY be interested (and we all could, 'cause it would
mean
> > auto-importing of different packages, in the sense, if a package foo
needs
> > a package bar, then when including foo, foo says 'I need bar, please
> > auto-include it !'). I have tried to do this for the DynAPI, but because
of
> > the problem stated above, never managed to do that....
>
> what about
> if (self["myVar"]) ....
>
> just a thought, haven't tried.
>
>
>
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