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Don't forget grep!

my @True; for my $Element (@Array){ if ($Element){ push @True, $Element; } }
becomes:
my @True = grep {$_} @Array;
To get every nth element from a list:
(Previously posted by me as Anonymous Monk...)
#(For every fourth element in @List) grep {not ++$i % 4} @List; #(To skip every fifth element) grep {++$i % 5} (1..50)
I suppose we could argue that grep isn't really intended as a looping mechanism, but map seems to be popular around here, and map is implemented on grep code (internally) so...

:-)

Russ


In reply to grep! (My favorite <em>this</em> week, anyway...) by Russ
in thread My favorite looping mechanism in Perl is: by vroom

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