Joining two Array[Byte] in Scala?

Question

Pretty straightforward problem that I can't find a good solution for:

val a1 = Array[Byte](1, 2, 3)
val a2 = Array[Byte](4, 5, 6)

How can I join these two arrays together? I don't mind if the first array is extended by the second.

Answer 1

Well, suddenly it was very easy to find after I asked!

val joinArray = a1 ++ a2