Reverse an array without using a loop in ruby

Question

I have a coding challenge to reverse a an array with 5 elements in it. How would I do this without using the reverse method?

Code:

def reverse(array)
 a         


        

Answer 1

One thought :-

ary = ["a", 1, "apple", 8, 90]
ary.values_at(*(ary.size-1).downto(0))
# => [90, 8, "apple", 1, "a"]

ary.size.downto(0) gives #. And *# is just a Enumerable#to_a method call which splats the Enumerator to [4, 3, 2, 1, 0]. Finally, Array#values_at is working as documented.