DRYing up Rock Paper Scissors

Question

I\'m a novice ruby programmer and although this code works, I\'m wondering how I can improve it. I have very limited knowledge on lambdas and procs and the like, but any advice

Answer 1

ROLL_OPS = %w[rock paper scissors]
RESULTS = %w[tie lose win]
def rps(roll)
  unless i = ROLL_OPS.index(roll)
    return puts "Please input rock paper or scissors".freeze
  end
  pick = ROLL_OPS.sample
  puts "#{pick}, #{RESULTS[(i - ROLL_OPS.index(pick)) % 3]}"
end