array-rank array → rank

array — an array.

rank — a non-negative integer.

Returns the number of dimensions of array.

(array-rank (make-array '())) → 0 
(array-rank (make-array 4)) → 1 
(array-rank (make-array '(4))) → 1 
(array-rank (make-array '(2 3))) → 2

Should signal an error of type type-error if its argument is not an array.

array-rank-limit, make-array