in reply to Re: defined vs null string
in thread defined vs null string
An interesting thing to notice, is that defined returns nothing if something is undef. But it prints a 1 if defined.
Perl functions/operators do not return "nothing". defined returns either "TRUE" or "FALSE", which is 1 for true or "" for false.
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Re^3: defined vs null string
by zentara (Cardinal) on Aug 30, 2011 at 22:19 UTC |