{"width":"100%","blog_url":"https://chaika.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fchaika.hatenablog.com%2Fentry%2F2014%2F08%2F07%2F103459\" title=\"javascript \u9023\u60f3\u914d\u5217(\u30aa\u30d6\u30b8\u30a7\u30af\u30c8)\u306e\u8981\u7d20\u6570\u304c\u77e5\u308a\u305f\u3044\u3002 - \u304b\u3082\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"javascript \u9023\u60f3\u914d\u5217(\u30aa\u30d6\u30b8\u30a7\u30af\u30c8)\u306e\u8981\u7d20\u6570\u304c\u77e5\u308a\u305f\u3044\u3002","author_name":"kikiki-kiki","type":"rich","published":"2014-08-07 10:34:59","provider_name":"Hatena Blog","description":"javascript\u306e\u9023\u60f3\u914d\u5217(\u30aa\u30d6\u30b8\u30a7\u30af\u30c8)\u306e\u8981\u7d20\u6570\u3092\u77e5\u308a\u305f\u3044\u6642Object.keys()\u3092\u4f7f\u3046\u3068\u4fbf\u5229\u3002 var myKantai = { flagship: '\u9b3c\u6012', destroyer1: '\u5439\u96ea', destroyer2: '\u767d\u96ea', destroyer3: '\u521d\u96ea', destroyer4: '\u6df1\u96ea' }; \u4f8b\u3048\u3070\u4e0a\u306e\u69d8\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8981\u7d20\u6570\u3092\u77e5\u308a\u305f\u3044\u6642\u306f var length = Object.keys(myKantai).length; console.log(length); // 5 \u306e\u69d8\u306a\u611f\u3058\u3067\u8981\u7d20\u6570\u304c\u53d6\u308c\u307e\u3059\u3002 // \u7b2c20\u99c6\u9010\u968a\u306b\u7de8\u6210 myKantai.flagshi\u2026","url":"https://chaika.hatenablog.com/entry/2014/08/07/103459","provider_url":"https://hatena.blog","image_url":"http://ecx.images-amazon.com/images/I/51jMq3+DklL.jpg","categories":["JavaScript"],"height":"190","author_url":"https://blog.hatena.ne.jp/kikiki-kiki/","version":"1.0","blog_title":"\u304b\u3082\u30e1\u30e2"}