Find the product of the elements in an Array without the element itself. [1,2,3], newArray = [6,3,2]

product_of_array.rb

def product_of_elements_array(a)
    i = 0
    prod = 1
    while i <= (a.length-1)
        prod = prod * a[i]
        i+=1
    end
   prod
end

def products_of_array(a)
    i = 0
    arr = []
    tmp = 0

    while i<= a.length-1
        tmp = a[i]
        a[i] = 1
        arr.push(product_of_elements_array(a))
        a[i] = tmp
        i+=1
    end
    arr
end
puts products_of_array([1,2,1,0])