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Re: Remove redundency from an array

by gube (Parson)
on Sep 24, 2007 at 15:02 UTC ( #640729=note: print w/replies, xml ) Need Help??

in reply to Remove redundency from an array

This below code also one of the method to avoid duplicate values from array. It's lengthy code, However, it's one of the alternate method.

my @array = (1,1,3,2,3,5,3,3,7,5,2); my (%ar_hash, @ar); for(@array) { next if($ar_hash{$_}++); push(@ar, $_); } print "@ar"; o/p : 1 3 2 5 7

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Re^2: Remove redundency from an array
by jdporter (Canon) on Sep 24, 2007 at 19:01 UTC

    Doesn't need to be lengthy.

    my @u = do { my %seen; grep { ! $seen{$_}++ } @a };

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