shigemk2 https://blog.hatena.ne.jp/shigemk2/ by shigemk2 https://www.shigemk2.com/ Scala 特に意味はないけど。 scala> val m = List(Map("name1"->"hoge", "name2"->"fuga"), Map("name1"->"bar", "name2"->"buzz")) m: List[scala.collection.immutable.Map[String,String]] = List(Map(name1 -> hoge, name2 -> fuga), Map(name1 -> bar, name2 -> buzz)) scala> m.foldLeft(Map[String,String]()) { (z, n) => z.updated… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2Fmap_foldleft_scala" title="MapでfoldLeftとか - 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> Hatena Blog https://hatena.blog 2015-11-30 23:34:20 rich https://www.shigemk2.com/entry/map_foldleft_scala 1.0 100%