Post_9.2.rb

  def winner?(board)
   winning_combos=[[1,2,3], [4,5,6], [7,8,9],
         [1,4,7], [2,5,8], [3,6,9], 
         [1,5,9], [3,5,7]]

   human_win=[]
   computer_win=[]

    board.cells.each do |k,v|
      if board.cells[k]=="X"
      computer_win << k
      elsif board.cells[k]=="O"
      human_win << k
      else
        false
      end

    end

  human_win.map!(&:to_i)
  computer_win.map!(&:to_i)

 winning_combos.each do |sub_array|
        if sub_array.all? {|x|human_win.include?(x)}
          puts "Human won!"
          return true
        elsif sub_array.all? {|y|computer_win.include?(y)}
          puts "Computer won!"
          return true
        end
    end
    return false
end