I have no clue why anyone might need this. I created it while answering a question about multidimensional arrays. It is my first successful recursive sub.

    sub depth {
        my $arr = shift;
        return 1 unless ref $$arr[0] eq 'ARRAY';
        return depth( $$arr[0] ) + 1;
    }

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Call it with a reference to your array of arrays structure

print depth( \@array );

Update: Changed the fourth line to indicate the correct sub.

In reply to Depth of AoAs by CharlesClarkson

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