Get index of current element in a foreach method of Traversable?

Question

Suppose I have two arrays:

val ar1 = Array[String](\"1\", \"2\", \"3\")
val ar2 = Array[String](\"1\", \"2\", \"3\", \"4\")

Now for each e

Answer 1

zip will do it:

ar1 zip ar2 foreach { p => println(p._1 + p._2) }

This will yield:

11
22
33

Note that you don't need [String] generic type, will be infered by the compiler:

val ar1 = Array("1", "2", "3")
val ar2 = Array("1", "2", "3", "4")