Question

At the moment I have a method that prints Ints

def printList(args: List[Int]): Unit = {
  args.foreach(println)
}

How do I modify this so it is flexible enough to print a list of anything?

Answer 1

Since println works on anything:

def printList(args: List[_]): Unit = {
  args.foreach(println)
}

Or even better, so you aren’t limited to Lists:

def printList(args: TraversableOnce[_]): Unit = {
  args.foreach(println)
}