「It is easier to recognize a clean general-purpose class design than it is to create one. Here are some questions you can ask yourself, which will help you to find the right balance between general-purpose and special-purpose for an interface.」
—『A Philosophy of Software Design, 2nd Edition』John K. Ousterhout著
https://a.co/eZOwnaN
作成よりも認識が簡単なのがクリーンな汎用クラス
