{"id":119689,"date":"2024-03-23T19:33:21","date_gmt":"2024-03-23T10:33:21","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b%e3%82%92%e7%a2%ba%e8%aa%8d%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-26T19:13:27","modified_gmt":"2024-03-26T10:13:27","slug":"r%e8%a8%80%e8%aa%9e%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b%e3%82%92%e7%a2%ba%e8%aa%8d%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/r%e8%a8%80%e8%aa%9e%e3%81%a7%e3%83%87%e3%83%bc%e3%82%bf%e5%9e%8b%e3%82%92%e7%a2%ba%e8%aa%8d%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"R\u8a00\u8a9e\u3067\u30c7\u30fc\u30bf\u578b\u3092\u78ba\u8a8d\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>R\u8a00\u8a9e\u3067\u306f\u3001typeof()\u95a2\u6570\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5909\u6570\u306e\u30c7\u30fc\u30bf\u578b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u5909\u6570x\u304c\u3042\u3063\u3066\u3001\u305d\u306e\u30c7\u30fc\u30bf\u578b\u3092\u898b\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>x <span class=\"hljs-operator\">&lt;-<\/span> 5\r\ntypeof<span class=\"hljs-punctuation\">(<\/span>x<span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306a\u51fa\u529b\u304c\u8868\u793a\u3055\u308c\u307e\u3059<\/p>\n<pre class=\"post-pre\"><code>[1] \"double\"\r\n<\/code><\/pre>\n<p>\u5909\u6570 x \u306e\u30c7\u30fc\u30bf\u578b\u306f double \u6d6e\u52d5\u5c0f\u6570\u70b9\u578b\u3067\u3059\u3002<\/p>\n<p>\u5909\u6570\u306e\u7a2e\u985e\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001typeof() \u95a2\u6570\u3060\u3051\u3067\u306a\u304f class() \u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u5909\u6570y\u304c\u3042\u308a\u3001\u30ab\u30c6\u30b4\u30ea\u30fc\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>y <span class=\"hljs-operator\">&lt;-<\/span> <span class=\"hljs-string\">\"Hello\"<\/span>\r\n<span class=\"hljs-built_in\">class<\/span><span class=\"hljs-punctuation\">(<\/span>y<span class=\"hljs-punctuation\">)<\/span>\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u7d50\u679c\u3068\u3057\u3066\u6b21\u306e\u6587\u5b57\u5217\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>[1] \"character\"\r\n<\/code><\/pre>\n<p>y\u5909\u6570\u306e\u578b\u306f\u6587\u5b57\u578b\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059<\/p>\n","protected":false},"excerpt":{"rendered":"<p>R\u8a00\u8a9e\u3067\u306f\u3001typeof()\u95a2\u6570\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5909\u6570\u306e\u30c7\u30fc\u30bf\u578b\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u4f8b\u3048\u3070\u3001\u5909\u6570x\u304c\u3042\u3063\u3066\u3001\u305d\u306e\u30c7\u30fc\u30bf\u578b\u3092\u898b\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002 x &lt;- 5 typeof(x) \u4e0a\u8a18\u30b3\u30fc\u30c9 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-119689","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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