Code Blocks as Commands : Command « Design Patterns « Ruby

1. Ruby
2. Design Patterns
3. 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

 

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