awesome_number = 12345
p awesome_number.to_s.chars.map(&:to_i).reverse
# Result:
# [5, 4, 3, 2, 1]
p awesome_number.digits
# Result:
# [5, 4, 3, 2, 1]
awesome_number = 12345
p awesome_number.to_s.chars.map(&:to_i).reverse
# Result:
# [5, 4, 3, 2, 1]
p awesome_number.digits
# Result:
# [5, 4, 3, 2, 1]