{"blog_title":"\u4e0b\u7d1a\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7db4","provider_url":"https://hatena.blog","width":"100%","published":"2017-02-20 23:41:41","url":"https://yanterakun.hatenablog.com/entry/2017/02/20/234141","author_url":"https://blog.hatena.ne.jp/yanterakun/","description":"\u6570\u5024\u3092\u6271\u3063\u3066\u3044\u308b\u3068\u304d\u306bnil\u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\u306e\u3067\u3001\u8abf\u3079\u305f\u3089\u3044\u3044\u611f\u3058\u306b\u884c\u3051\u305d\u3046\u3060\u3063\u305f\u306e\u3067\u30e1\u30e2\u3002 nil.nil? # true nil.to_i # 0 nil.to_i.nil? # false nil.to_s # \"\" nil.to_s.nil? # false nil.to_s.empty # true ruby\u3063\u3066\u9762\u767d\u3044\u3067\u3059\u306d\u3002","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyanterakun.hatenablog.com%2Fentry%2F2017%2F02%2F20%2F234141\" title=\"ruby\u306enil\u30920\u306b\u3057\u305f\u3044\u3068\u304d\u306b\u8abf\u3079\u305f\u306e\u3067\u30e1\u30e2 - \u4e0b\u7d1a\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u7db4\" 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","provider_name":"Hatena Blog","categories":["ruby"],"type":"rich","title":"ruby\u306enil\u30920\u306b\u3057\u305f\u3044\u3068\u304d\u306b\u8abf\u3079\u305f\u306e\u3067\u30e1\u30e2","author_name":"yanterakun","blog_url":"https://yanterakun.hatenablog.com/","image_url":null,"version":"1.0"}