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Re: Two meanings of undef

by BillKSmith (Monsignor)
on Aug 16, 2020 at 16:07 UTC ( [id://11120816]=note: print w/replies, xml ) Need Help??

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  1. or download this
    ?perl -e"$line = undef; print 3 + $line"
3
...
3
?perl -e"$line = undef; print 3 unless defined $line"
3
  2. or download this
    $current_time='14:30:05'
(undef, $min, $sec)=split /\:/, $current_time

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