Where is the implementation of Array.map?

Question

In Scala collections (e.g. 2.11 or 2.12), where can I find the code that gets executed when an Array is mapped?

i.e.

val a = Array(1,2,3)
val b = a.map(_ * 5)   // <--- here

Answer 1

That would be TraversableLike.

When methods such as map are called on arrays, an implicit conversion to ArrayOps kicks in (e.g. Predef.intArrayOps), which in turn derives these methods from SeqLike / TraversableLike through inheritance.