[Ruby] exercise _ Hand Score

Write a method hand_score that takes in a string representing a hand of cards and returns it's total score. You can assume the letters in the string are only A, K, Q, J. A is worth 4 points, K is 3 points, Q is 2 points, and J is 1 point. The letters of the input string not necessarily uppercase.

 

def hand_score(hand)

end

puts hand_score("AQAJ") #=> 11
puts hand_score("jJka") #=> 9

my code

def hand_score(hand)
  sum = 0
  score = {
  "A" => 4,
  "K" => 3,
  "Q" => 2,
  "J" => 1
  }
  
  hand.each_char do |char|
  	sum += score[char.upcase]
  end

  return sum
end

puts hand_score("AQAJ") #=> 11
puts hand_score("jJka") #=> 9

solution

def hand_score(hand)
  points = {
    "A"=>4,
    "K"=>3,
    "Q"=>2,
    "J"=>1
  }

  score = 0
  hand.each_char { |char| score += points[char.upcase] }
  return score
end

puts hand_score("AQAJ") #=> 11
puts hand_score("jJka") #=> 9