{"height":"190","author_name":"iww","blog_title":"\u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12","blog_url":"https://iww.hateblo.jp/","url":"https://iww.hateblo.jp/entry/20170318/isnum","width":"100%","type":"rich","categories":["JavaScript"],"version":"1.0","published":"2017-03-18 00:00:00","description":"10e11 \u3068\u304b 0x10 \u3068\u304b\u306f\u6570\u5b57\u3068\u3057\u3066\u65ad\u3058\u3066\u8a8d\u3081\u306a\u3044 function isnum(str) { return str.match(/^[-]?[\\d]+\\.?[\\d]*$/); } var a = \"-5.00a\"; console.log( isnum(a) ? \"\u6570\u5024\u3060\" : \"\u6570\u5024\u3058\u3083\u306a\u3044\" );","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fiww.hateblo.jp%2Fentry%2F20170318%2Fisnum\" title=\" \u6570\u5b57\u304b\u305d\u3046\u3058\u3083\u306a\u3044\u304b\u5224\u5b9a - \u63ee\u767a\u6027\u306e\u30e1\u30e2\uff12\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","title":" \u6570\u5b57\u304b\u305d\u3046\u3058\u3083\u306a\u3044\u304b\u5224\u5b9a","image_url":null,"author_url":"https://blog.hatena.ne.jp/iww/"}