Ruby: Multiply all elements of an array

Question

Let\'s say I have an array A = [1, 2, 3, 4, 5]

how can I multiply all elements with ruby and get the result? 1*2*3*4*5 = 120

and what if there is an element 0 ?

Answer 1

If you want to understand your code later on, use this: Assume A = 5, I used n instead of A

n = 5
n.times {|x| unless x == 0; n =  n * x; ++x; end} 
p n

To carry it forward, you would:

A = [1,2,3,4,5]
arb = A.first
a = A.count
a.times {|x| arb = arb * A[x]; ++x}
p arb