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Difference between two arrays - is there a better way?

by blindluke (Hermit)
on Aug 09, 2011 at 08:58 UTC ( [id://919422]=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    #!/usr/bin/perl -w
use strict;
...
for (keys %repeats) {
    push @diff, $_ unless $repeats{$_} > 1;
}
  2. or download this
    #!/usr/bin/perl -w
use strict;
...

@diff{ @list1 } = undef;
delete @diff{ @list2 };

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