{"blog_url":"https://susisu.hatenablog.com/","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"],"author_url":"https://blog.hatena.ne.jp/susisu/","version":"1.0","published":"2023-09-10 23:42:29","blog_title":"Object.create(null)","provider_url":"https://hatena.blog","title":"Null Object is a ...","url":"https://susisu.hatenablog.com/entry/2023/09/10/234229","image_url":null,"height":"190","type":"rich","description":"What? Null Object \u30d1\u30bf\u30fc\u30f3\u3068\u306f \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u3044\u308b\u3068, \u4f55\u3082\u3057\u306a\u3044\u30fb\u4f55\u3082\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3092\u8868\u3057\u305f\u3044\u30b7\u30c1\u30e5\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u3057\u3070\u3057\u3070\u767b\u5834\u3057\u307e\u3059. \u30ca\u30a4\u30fc\u30d6\u306a\u5b9f\u88c5\u3067\u306f\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306b null \u306e\u3088\u3046\u306a\u7279\u6b8a\u306a\u5024\u3092\u4f7f\u3044\u307e\u3059\u304c, \u591a\u304f\u306e\u8a00\u8a9e\u3067\u306f null \u306b\u5bfe\u3057\u3066\u306f\u30e1\u30bd\u30c3\u30c9\u306e\u5b9a\u7fa9\u3084\u547c\u3073\u51fa\u3057\u304c\u3067\u304d\u306a\u3044\u305f\u3081, \u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u30591. \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u305f\u3073\u306b\u90fd\u5ea6 null \u304b\u3069\u3046\u304b\u306e\u691c\u67fb\u304c\u5fc5\u8981\u306b\u306a\u308a, \u30b3\u30fc\u30c9\u304c\u5197\u9577\u306b\u306a\u308b null \u306e\u5834\u5408\u306b\u3069\u3046\u3059\u308b\u304b\u3068\u3044\u3046\u51e6\u7406\u3092\u90fd\u5ea6\u8a18\u8ff0\u3059\u308b\u3053\u3068\u306b\u306a\u308a, \u30b3\u30fc\u30c9\u306e\u51dd\u96c6\u5ea6\u304c\u4e0b\u304c\u308b null \u304b\u3069\u3046\u304b\u306e\u691c\u67fb\u3092\u5fd8\u308c\u3066\u30e9\u30f3\u30bf\u30a4\u30e0\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b Null\u2026","author_name":"susisu","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsusisu.hatenablog.com%2Fentry%2F2023%2F09%2F10%2F234229\" title=\"Null Object is a ... - Object.create(null)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%"}