How do I find .index of a multidimensional array

Question

Tried web resources and didnt have any luck and my visual quick start guide.

If I have my 2d/multidimensional array:

 array = [[\'x\', \'x\',\' x\',\'x\'         


        

Answer 1

Specifies both indexes of the first occurrence of element for one pass on subarrays

a = [[...],[...],[...],[...]]
element = 'S'
result_i = result_j = nil

a.each_with_index do|row, i|
    if (j = row.index(element))
        result_i, result_j = i, j       
        break
    end
end