Sequences and for loops. Simple for loops A for loop is used to do something with every element of a sequence scala> for (i <- 2 to 5) println(i + " squared. - ppt download
playframework - Scala flatten a Seq[Future[Seq[]]] - Stack Overflow
Lists in Scala | DataCamp
Programmiersprache Scala 2.13 erweitert das Collection-Framework | heise online