{"categories":["actionscript"],"title":" ActionScript \u3067\u306f\u5b89\u5168\u306b Object \u6c5a\u67d3\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b","author_url":"https://blog.hatena.ne.jp/amachang/","url":"https://amachang.hatenablog.com/entry/20061220/1166630932","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Famachang.hatenablog.com%2Fentry%2F20061220%2F1166630932\" title=\" ActionScript \u3067\u306f\u5b89\u5168\u306b Object \u6c5a\u67d3\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b - IT\u6226\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"blog_url":"https://amachang.hatenablog.com/","author_name":"amachang","version":"1.0","type":"rich","width":"100%","blog_title":"IT\u6226\u8a18","provider_name":"Hatena Blog","height":"190","description":"Object \u6c5a\u67d3\u3068\u306f \u7c21\u5358\u306b\u8a00\u3046\u3068 Object.prototype \u3092\u62e1\u5f35\u3057\u305f\u3068\u304d\u306b\u3001\u3059\u3079\u3066\u306e for in \u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3066\u3057\u307e\u3063\u3066\u3001\u3044\u308d\u3093\u306a\u3053\u3068\u304c\u56f0\u308b\u3002\u3068\u3044\u3046\u554f\u984c\u3067\u3042\u308b\u3002 DontEnum \u3068\u3044\u3046\u5185\u90e8\u5c5e\u6027\u3092\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u4e0e\u3048\u308b\u624b\u6bb5\u304c\u306a\u3044\u305f\u3081\u306b\u767a\u751f\u3059\u308b\u3002 Object.prototype.hoge = '\u307b\u3052'; for (var p in {}) alert(p); // hoge \u3068\u8868\u793a\u3055\u308c\u308b ActionScript \u3067\u306f setPropertyIsEnumerable \u3068\u3044\u3046\u95a2\u6570\u304c Object.prototype \u306b\u5ba3\u8a00\u3055\u308c\u3066\u3044\u308b\u3002 \u3053\u308c\u3092\u4f7f\u3046\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u5b89\u5168\u306b\u3059\u3079\u3066\u306e\u30aa\u30d6\u30b8\u30a7\u2026","published":"2006-12-20 01:08:52","provider_url":"https://hatena.blog"}