# Non-recursive factorial in Ruby

I've implemented a factorial function in a more "Ruby" way. I would like to get feedback on the algorithm.

def factorial_of n
(1..n).inject :*
end

factorial_of 5
=> 120

• factorial_of 5 gives 15, not 120... Maybe you had another function and didn't paste in the correct one? – Dair Dec 11 '18 at 0:35
• So sorry! Just edited. I pasted it wrong. – Vinicius Brasil Dec 11 '18 at 0:36

The "of" in the name factorial_of is redundant and unconventional.
factorial_of 0 returns nil instead of the correct answer, which is 1.
def factorial(n)