{"title":"Json4s Monoid Instance","provider_name":"Hatena Blog","published":"2013-04-10 02:42:25","author_url":"https://blog.hatena.ne.jp/xuwei/","description":"https://github.com/xuwei-k/json4s-monoid/blob/b81187378f62f/src/test/scala/Spec.scala\u4e0a\u8a18\u306f\u6b63\u3057\u3044\u4f8b\u3002\u4ee5\u4e0b\u306fMonoid\u5247\u3092\u6e80\u305f\u3055\u306a\u3044\u4f8b implicit def JValueInstance: Monoid[JValue] = Monoid.instance(_ merge _, JObject(Nil)) implicit def JValueInstance: Monoid[JValue] = Monoid.instance(_ ++ _, JObject(Nil)) implicit def JValu\u2026","height":"190","blog_url":"https://xuwei-k.hatenablog.com/","url":"https://xuwei-k.hatenablog.com/entry/20130410/1365529345","version":"1.0","width":"100%","type":"rich","blog_title":"xuwei-k's blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fxuwei-k.hatenablog.com%2Fentry%2F20130410%2F1365529345\" title=\"Json4s Monoid Instance - xuwei-k&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["json4s","scalaz"],"provider_url":"https://hatena.blog","author_name":"xuwei","image_url":null}