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動的にメソッドを生成する例

Posted at

クラス定義をいじることなく、configの情報からメソッドを生成できる

CONFIG = {name: 'taro', age: '20', lang: 'ruby'}

class Me
  def initialize
    CONFIG.each do |k, v|
      self.class.send(:define_method, k) { v }
    end
  end
end

me = Me.new

puts me.name
puts me.age
puts me.lang
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