Hi Rubyists, is this the place to ask beginner questions? I am confused about pattern matching. It only seems to work when the key is of type symbol. How would I apply pattern matching to string keys? Example require "yaml" yaml_data=" cards_on_hand:  - suite: hearts    value: '9'  - suite: hearts    value: 'king'  - suite: diamonds    value: 'king' " y=YAML.safe_load(yaml_data, symbolize_names: true) puts y.inspect y[:cards_on_hand].each do |a_card|   case a_card   in { suite: String => captured_suite, value: 'king' }     puts "you have a king on your hand and its suite is #{captured_suite}"   else      puts "a card of no interest #{a_card.inspect}"   end end {cards_on_hand: [{suit: "hearts", value: "9"}, {suit: "hearts", value: "king"}, {suit: "diamonds", value: "king"}]} a card of no interest {suite: "hearts", value: "9"} you have a king on your hand and its suite is hearts you have a king on your hand and its suite is diamonds Second question: Since everything in Ruby is an object, how do I pass patterns into a function? Even more specific, how do I handle capture when passing to a function? Cheers, Marcus