{"version":"1.0","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmzp.hatenadiary.org%2Fentry%2F20081221%2Ftrait\" title=\"Scala\u306eTrait\u3092\u4f7f\u3063\u3066\u307f\u308b - \u307f\u305a\u3074\u30fc\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"author_name":"mzp","blog_title":"\u307f\u305a\u3074\u30fc\u65e5\u8a18","title":"Scala\u306eTrait\u3092\u4f7f\u3063\u3066\u307f\u308b","author_url":"https://blog.hatena.ne.jp/mzp/","description":"30\u5206\u30d7\u30ed\u30b0\u30e9\u30e0\u3001\u305d\u306e442\u3002\u306a\u3093\u3068\u306a\u304ftrait\u3092\u4f7f\u3063\u3066\u307f\u305f\u304b\u3063\u305f\u306e\u3067\u3001Ruby\u306eEnumerable\u3063\u307d\u3044\u3084\u3064\u3092\u4f5c\u3063\u3066\u307f\u305f\u3002foreach\u3092\u5b9f\u88c5\u3057\u305f\u4e0a\u3067Enumerable trait\u3092\u304f\u3063\u3064\u3051\u308b\u3068\u3001map\u3068filter\u3001concatMap\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5b9f\u88c5\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308b\u3002 class MySet[T <% Ordered[T]] extends ForEach[T] with Enumerable[T] { // foreach\u3060\u3051\u3092\u5b9f\u88c5\u3059\u308b def foreach(x : T => Unit) : Unit = .... } \u4f7f\u3044\u65b9 scala> val s : MySet[Int]\u2026","type":"rich","url":"https://mzp.hatenadiary.org/entry/20081221/trait","blog_url":"https://mzp.hatenadiary.org/","provider_name":"Hatena Blog","width":"100%","categories":["Scala","30\u5206\u30d7\u30ed\u30b0\u30e9\u30e0"],"published":"2008-12-21 00:00:00","provider_url":"https://hatena.blog"}