sorry ... is impossible to see in my previous message the -> [] 

then with square brackets visible is :

sub diff_2 {
    my @diff =  grep /[[^@{$_[0]]}]/, @{$_[1]};
    return \@diff;
}

Marco

In reply to Re^3: Need to Create an Array of Differences by Anonymous Monk
in thread Need to Create an Array of Differences by scottj

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