Arie van Wingerden napsal(a):
>
>
>Hi Ladislav / Romano,
>
>in order to get a grip I played around with your examples, but I don't
>understand the following:
>why give the following 2 cases different results?
> 1 >>unset 'var
> >>unset? 'var
> == false
> 2 >>unset? unset 'var
> == true
>
>The only thing I can think of is that unset! is not a datatype of the
>variable being unset.
>E.g. after unset 'x x would not have a datatype of unset! (which I thought
>was true).
>Instead unset! would just be the returned value of unset itself only.
>
>Thanks!
> Arie
>
>
a little note:
unset? ...
is equivalent to:
unset! = type? ...
while
type? 'variable
is always equal to word!
HTH
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