{"image_url":"http://ecx.images-amazon.com/images/I/51OtMPYsLwL.jpg","width":"100%","categories":["JavaScript"],"provider_name":"Hatena Blog","height":"190","author_url":"https://blog.hatena.ne.jp/shawshank99/","type":"rich","url":"https://aoking.hatenablog.jp/entry/20120217/1329452700","version":"1.0","blog_url":"https://aoking.hatenablog.jp/","published":"2012-02-17 13:25:00","title":" JavaScript \u3067\u6570\u5024\u5224\u5b9a","description":"\u4e0e\u3048\u3089\u308c\u305f x \u304c\u6570\u5024\u304b\u3001\u3082\u3057\u304f\u306f\u6587\u5b57\u5217\u3067\u306e\u6570\u5b57\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u3002\u6570\u5024\u307e\u305f\u306f\u6570\u5b57\u306a\u3089 true. function isNumber(x){ if( typeof(x) != 'number' && typeof(x) != 'string' ) return false; else return (x == parseFloat(x) && isFinite(x)); } \u30c6\u30b9\u30c8 isNumber(-1) // true isNumber(0) // true isNumber(1) // true isNumber(0.0) // true isNumber(1.5) // true is\u2026","blog_title":"\u306b\u3087\u304d\u306b\u3087\u304d\u30d6\u30ed\u30b0","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faoking.hatenablog.jp%2Fentry%2F20120217%2F1329452700\" title=\" JavaScript \u3067\u6570\u5024\u5224\u5b9a - \u306b\u3087\u304d\u306b\u3087\u304d\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"shawshank99"}