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@k-yamada-githubin

株式会社ソニックス

railsでオープンクラスをするときの作法

Rails

Posted at 2016-05-17

参考

例: Stringクラスを拡張する場合

lib/ext/string.rb

class String
  def is_number?
    true if Float(self) rescue false
  end
end

config/initializers/extensions.rb

require 'ext/string'

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