class PlayerList

  include Enumerable

  def initialize(list_of_players)
    @data = list_of_players
  end

  def each
    @data.each { |e| yield(e) }
  end

end

player_list = PlayerList.new(["greg", "jia", "shane"])
player_list.each { |player| puts player }
p player_list.map { |player| player.reverse }