{"author_url":"https://blog.hatena.ne.jp/rubytips86/","categories":[],"image_url":null,"blog_url":"https://rubytips86.hatenablog.com/","provider_name":"Hatena Blog","width":"100%","blog_title":"Ruby Tips!","provider_url":"https://hatena.blog","title":"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092Integer\u3084Float\u306b\u5909\u63db\u3059\u308b","published":"2014-03-19 11:29:18","author_name":"rubytips86","description":"Ruby\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6574\u6570\u306b\u5909\u63db\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u540d\u306bto_i\u3092\u4f7f\u3046\u6163\u4f8b\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u69d8\u3005\u306aRuby\u306e\u30af\u30e9\u30b9\u304c\u3053\u306e\u6163\u4f8b\u306b\u5f93\u3063\u3066\u304a\u308a\u3001\u4f8b\u3048\u3070\u6587\u5b57\u5217\u3084\u6642\u523b\u3001\u4ed6\u306b\u3082nil\u3082to_i\u3067\u6574\u6570\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 p \"123\".to_i #=> 123 p Time.now.to_i #=> 1395194537 p nil.to_i #=> 0 \u3082\u3057\u3001\u81ea\u5206\u3067\u5b9a\u7fa9\u3057\u305f\u30af\u30e9\u30b9\u306b\u3001\u6574\u6570\u306b\u5909\u63db\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u5834\u5408\u3082\u3001\u305d\u306e\u540d\u524d\u306fto_i\u306b\u3057\u3066\u304a\u304f\u3068\u6df7\u4e71\u3057\u306a\u3044\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6574\u6570\u306b\u5909\u63db\u3059\u308b\u5225\u306e\u65b9\u6cd5\u3068\u3057\u3066\u3001\u7d44\u307f\u8fbc\u307f\u95a2\u6570Integer\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u3042\u308b\u3002Integer\u306fto_i\u3088\u308a\u53b3\u5bc6\u306a\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\u70b9\u304c\u7570\u306a\u2026","url":"https://rubytips86.hatenablog.com/entry/2014/03/19/112918","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frubytips86.hatenablog.com%2Fentry%2F2014%2F03%2F19%2F112918\" title=\"\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092Integer\u3084Float\u306b\u5909\u63db\u3059\u308b - Ruby Tips!\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","version":"1.0","type":"rich"}