{"blog_url":"https://kamatama41.hatenablog.com/","provider_url":"https://hatena.blog","image_url":null,"type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkamatama41.hatenablog.com%2Fentry%2F2018%2F03%2F31%2F073305\" title=\"\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306f\u305d\u306e\u30af\u30e9\u30b9\u304b\u3089\u3057\u304b\u53c2\u7167\u3067\u304d\u306a\u3044 - \u304b\u307e\u305f\u307e\u65e5\u8a183\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","author_name":"kamatama_41","url":"https://kamatama41.hatenablog.com/entry/2018/03/31/073305","provider_name":"Hatena Blog","width":"100%","published":"2018-03-31 07:33:05","categories":["Ruby"],"version":"1.0","description":"Ruby\u306e\u30af\u30e9\u30b9\u306fClass\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u306e\u3067\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3092\u6301\u3066\u307e\u3059\u3002\u30af\u30e9\u30b9\u30ec\u30d9\u30eb\u3068\u304b\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u5b9a\u7fa9\u3055\u308c\u305f@\u4ed8\u304d\u306e\u5909\u6570\u306f\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570(Class Instance Variable)\u3068\u547c\u3070\u308c\u3001\u305d\u306e\u30af\u30e9\u30b9\u304b\u3089\u3057\u304b\u53c2\u7167\u3067\u304d\u307e\u305b\u3093\u3001\u7d99\u627f\u3055\u308c\u3066\u308b\u5834\u5408\u3001\u7d99\u627f\u5148\u3067\u3082\u53c2\u7167\u3067\u304d\u307e\u305b\u3093\u3002\u4ed5\u4e8b\u4e2d\u306b\u7d99\u627f\u3057\u3066\u3044\u308b\u30af\u30e9\u30b9\u3067Base\u306e\u5024\u3092\u53c2\u7167\u3057\u3088\u3046\u3068\u3057\u3066\u3061\u3087\u3063\u3068\u30cf\u30de\u3063\u305f\u6b21\u7b2c\u3067\u3042\u308a\u307e\u3059\u3002 \u30d0\u30fc\u30b8\u30e7\u30f3\u306f2.5.0\u3067\u3059\u3002 class Base def self.get @keys end def self.add(key) @keys ||= [] @keys << key end add(\"\u2026","author_url":"https://blog.hatena.ne.jp/kamatama_41/","blog_title":"\u304b\u307e\u305f\u307e\u65e5\u8a183","title":"\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306f\u305d\u306e\u30af\u30e9\u30b9\u304b\u3089\u3057\u304b\u53c2\u7167\u3067\u304d\u306a\u3044"}