{"categories":["Scala"],"version":"1.0","height":"190","type":"rich","title":"case class\u306e\u53ef\u5909\u9577\u5f15\u6570\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3067\u3054\u306b\u3087\u3054\u306b\u3087\u3057\u305f\u304b\u3063\u305f","blog_url":"https://www.shigemk2.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2Fscala_varargs_caseclass\" title=\"case class\u306e\u53ef\u5909\u9577\u5f15\u6570\u3092\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3067\u3054\u306b\u3087\u3054\u306b\u3087\u3057\u305f\u304b\u3063\u305f - by shigemk2\" 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":"shigemk2","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/shigemk2/","url":"https://www.shigemk2.com/entry/scala_varargs_caseclass","blog_title":"by shigemk2","published":"2015-06-30 08:30:12","description":"\u3056\u3063\u304f\u308a\u8a00\u3046\u3068\u3001\u3053\u3046\u3044\u3046\u6d41\u308c\u3067\u3059\u3002 // \u5b9a\u7fa9\u3059\u308b scala> case class Hoge(xs: Int*) defined class Hoge // \u666e\u901a\u306b\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u3057\u3066\u3082\u30a8\u30e9\u30fc scala> Hoge(1,2,3) match {case Hoge(xs) => xs.sum } <console>:10: error: value sum is not a member of Int Hoge(1,2,3) match {case Hoge(xs) => xs.sum } ^ // _*\u3068\u66f8\u304f\u3068\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u901a\u308b\u304c\u5168\u90e8\u6368\u3066\u3089\u308c\u308b scala> Hoge(1,2,3) matc\u2026","width":"100%","provider_name":"Hatena Blog","image_url":null}