2018-06-15 scala copy プログラミング わかった [code lang=text] scala> case class User(name: String, age: Int) defined class User scala> val astel = User("astel",26) astel: User = User(astel,26) scala> val newAstel = astel.copy(age = 27) newAstel: User = User(astel,27) [/code]
