class_work.rb

class Card
  def initialize(rank = nil, suit = nil)
    if suit.nil?
      @suit = ['♠', '♣', '♥', '♦'].sample
    else
      @suit = suit
    end
    if rank.nil?
    	@rank = [2..10,'J','Q','K','A'].sample
    puts "Create a new card: #{@rank} of #{@suit}"
  end
end

5.times { Card.new('10') }