Code Blocks as Commands : Command « Design Patterns « Ruby

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Ruby » Design Patterns » Command

Code Blocks as Commands





class Commander

  attr_accessor :command



  def initialize(&block)

    @command = block

  end



  def on_button_push

    @command.call if @command

  end

end



new_button = Commander.new do

   puts "asdf"

end

Related examples in the same category

1.	An Easier Way of Command Pattern
2.	Commands That Record (Command and composite pattern)
3.	Undo by a Command

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