As of perl 5.20 you can use a hash slice:
my @dups=(1,2,1,2,1,2); my @nodups = do { my %h; @h{ @dups } = (1) x @dups; keys %h };
Add a sort before keys if you need them ordered.
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As of perl 5.20 you can use a hash slice:
my @dups=(1,2,1,2,1,2);
my @nodups = do { my %h; @h{ @dups } = (1) x @dups; keys %h };
Add a sort before keys if you need them ordered.