To remove duplicate elements, use an intermediate hash: 

my @out = keys %{{map {($_ => 1)} (@A, @B)}};

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The double %{{}} on the outside are necessary, as the inner pair creates a hash reference, and the outer %{} dereferences it.

Ron Steinke
<rsteinke@w-link.net>

In reply to Re: Merging Arrays without duplicates by rsteinke
in thread Merging Arrays without duplicates by perl_krish

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