Scala: what is the best way to append an element to an Array?

Question

Say I have an Array[Int] like

val array = Array( 1, 2, 3 )

Now I would like to append an element to the array, say the value

Answer 1

The easiest might be:

Array(1, 2, 3) :+ 4

Actually, Array can be implcitly transformed in a WrappedArray