{"description":"\u6587\u5b57\u578b\u306e\u6570\u5b57\u3092\u6570\u5b57\u578b\u3078\uff08\u6b63\u78ba\u306b\u306f\u6574\u6570\u306b\uff09\u5909\u63db\u3059\u308b\u306b\u306fparseInt\u95a2\u6570\u3092\u4f7f\u3046\u3002 parseInt(\"2.2\"); parseInt(2.2); \u6587\u5b57\u578b\u306e\u3082\u306e\u3060\u3051\u3067\u306a\u304f\u3001\u6570\u5b57\u578b\u306e\u3082\u306e\u3092\u6e21\u3057\u3066\u3082\u3044\u305a\u308c\u3082\u300c2\u300d\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\u3002\u3046\u3093\u3001\u4fbf\u5229\u3002 \u3057\u304b\u3057\u306a\u304c\u3089\u3001\u4ee5\u4e0b\u306e\u30b1\u30fc\u30b9\u3067\u306f\u5b09\u3057\u304f\u306a\u3044\u7d50\u679c\u304c\u8fd4\u308a\u307e\u3059\u3002 parseInt(\"2abc\"); \u3053\u308c\u306f\u5f53\u7136\u300cNaN\u300d\u306b\u306a\u308b\u306e\u304b\u3068\u601d\u3063\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u300c2\u300d\u304c\u8fd4\u3063\u3066\u304d\u307e\u3059\uff01\u30d3\u30c4\u30af\u30ea\uff01\uff01 \u3068\u3044\u3046\u308f\u3051\u3067\u601d\u3044\u3064\u3044\u305f\u306e\u306f\u3053\u3093\u306a\u306e\u3002 parseInt(1 * \"2abc\"); 1\u3092\u304b\u3051\u308b\u3053\u3068\u3067\u3001\u5f37\u5236\u7684\u306b\u6587\u5b57\u578b\u304b\u3089\u6570\u5b57\u578b\u3078\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6642\u70b9\u3067\u300cNaN\u300d\u306b\u306a\u308a\u307e\u3059\u3002 \u8ffd\u8a18 \u2026","width":"100%","published":"2009-03-13 20:20:49","provider_name":"Hatena Blog","author_name":"mtoyoshi","categories":["Javascript"],"blog_title":"mtoyoshi\u958b\u767a\u30e1\u30e2","height":"190","version":"1.0","title":"\u6587\u5b57\u304b\u3089\u6570\u5b57\uff08\u6574\u6570\uff09\u3078","blog_url":"https://mtoyoshi.hateblo.jp/","type":"rich","image_url":null,"url":"https://mtoyoshi.hateblo.jp/entry/20090313/1236943249","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmtoyoshi.hateblo.jp%2Fentry%2F20090313%2F1236943249\" title=\"\u6587\u5b57\u304b\u3089\u6570\u5b57\uff08\u6574\u6570\uff09\u3078 - mtoyoshi\u958b\u767a\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>","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/mtoyoshi/"}