Funky stuff with for loops & prepopulating lists

You can pre populate a list with a loop like "val list = 1 to 20"

You can return stuff from a for loop with the "yield" command

def looping() = {
 val myList = (1 to 20 by 3)
 println(myList)

 val list2 = for( i <- myList if i % 2 == 0 ) yield i
 println(list2) 
}