Scala convert Iterable of Tuples to Array of Just Tuple._2

Question

Say I have a Iterable[(Int, String)]. How do I get an array of just the "values"? That is, how do I convert from Iterable[(Int, String)] => Array[String]? The "keys" or "values" do not have to be unique, and that's why I put them in quotation marks.

Answer 1

iterable.map(_._2).toArray

_._2 : take out the second element of the tuple represented by input variable( _ ) whose name I don't care.

Answer 2

Simply:

val iterable: Iterable[(Int, String)] = Iterable((1, "a"), (2, "b"))

val values = iterable.toArray.map(_._2)