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Re: undef and empty variables

by ikegami (Patriarch)
on Jan 19, 2011 at 17:02 UTC ( [id://883162]=note: print w/replies, xml ) Need Help??

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  1. or download this
    sub empty_to_undef {
   return defined($_[0]) && !length($_[0]) ? undef : $_[0];
}
  2. or download this
    sub empty_to_undef {
   no warnings 'uninitialized'; 
   return length($_[0]) ? $_[0] : undef;
}

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