in reply to Re: What is true and false in Perl?
in thread What is true and false in Perl?
Another one that's false is a list of undefs. An array of undefs though is true.
We make use of this like so:if ( (undef,undef) ) { } # a list of undefs is false @arr = (undef,undef); if ( @arr ) {} # an array of undefs is true
mc0e$_ = 'x'; if (($a,$b) = m/(.)(.)/) { }
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Re^3: What is true and false in Perl?
by tobyink (Canon) on Oct 18, 2012 at 02:26 UTC | |
Re^3: What is true and false in Perl? (undef,undef)
by tye (Sage) on Oct 18, 2012 at 03:50 UTC | |
by amartyaj (Initiate) on Nov 22, 2013 at 18:00 UTC | |
by davido (Cardinal) on Nov 22, 2013 at 18:11 UTC | |
by amartyaj (Initiate) on Nov 22, 2013 at 19:35 UTC | |
Re^3: What is true and false in Perl?
by jdporter (Paladin) on Oct 17, 2012 at 19:43 UTC | |
by Anonymous Monk on Oct 17, 2012 at 23:40 UTC | |
by jdporter (Paladin) on Oct 18, 2012 at 15:25 UTC |
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