{"author_name":"shuzo_kino","version":"1.0","description":"require 'active_support/core_ext/class'\u3059\u308b\u3068\u4f7f\u3048\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001Integer\u306b\u3084\u308b\u3068 Integer.subclasses # => [Fixnum, Bignum]\u306e\u3088\u3046\u306b\u3001\u7d99\u627f\u3057\u305f\u5148\u304c\u51fa\u3066\u304d\u307e\u3059\u3002\u81ea\u4f5c\u30af\u30e9\u30b9\u3067\u3082\u540c\u69d8\u3067\u3059\u3002 class Foo; end class Bar < Foo; end class Baz < Bar; end class Hoge < Foo; end Foo.subclasses # => [Hoge, Bar] \u53c2\u8003\u3082\u3068 Ruby\u3067\u30b5\u30d6\u30af\u30e9\u30b9\u306e\u4e00\u89a7\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 -- \u307a\u3051\u307f\u3055\u304a Class","height":"190","blog_url":"https://shuzo-kino.hateblo.jp/","categories":["ruby"],"image_url":null,"width":"100%","title":"active_support\u306eClass#subclasses\u3067\u7d99\u627f\u5148\u3092\u8abf\u3079\u308b","type":"rich","url":"https://shuzo-kino.hateblo.jp/entry/2014/09/07/234814","provider_name":"Hatena Blog","published":"2014-09-07 23:48:14","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshuzo-kino.hateblo.jp%2Fentry%2F2014%2F09%2F07%2F234814\" title=\"active_support\u306eClass#subclasses\u3067\u7d99\u627f\u5148\u3092\u8abf\u3079\u308b - Bye Bye Moore\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/shuzo_kino/","blog_title":"Bye Bye Moore"}