Combining Arrays in Scala

Question

If I have DerivedType1:BaseType and DerivedType2:BaseType and Array[DerivedType1] and Array[DerivedType2], what's the most succinct way of combining them into Array[BaseType]?

C++ background? Don't use X:Y to denote inheritance, because that's the syntax for context bound. — Daniel C. Sobral
– Daniel C. Sobral, Commented Oct 24, 2011 at 16:05

missingfaktor · Accepted Answer · 2011-10-23 06:40:50Z

40

Use the ++ method on Array.

scala> class A; class B extends A; class C extends A
defined class A
defined class B
defined class C

scala> Array(new B, new B) ++ Array(new C, new C)
res33: Array[A] = Array(B@b7501b, B@ec5359, C@1540d0c, C@124a927)

answered Oct 23, 2011 at 6:40

missingfaktor

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