This was my first thought too, it only works if you don't have the same value in any of the arrays more than once. 
my @array1 = (1,2,2); # 2 would be in the final array
my @array2 = (1);
my @array3 = (1);

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my name's not Keith, and I'm not reasonable.

In reply to Re^2: array comparison question by reasonablekeith
in thread array comparison question by Anonymous Monk

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