How to flatten a collection with Spark/Scala?

Question

In Scala I can flatten a collection using :

val array = Array(List(\"1,2,3\").iterator,List(\"1,4,5\").iterator)
                                                    


        

Answer 1

Use flatMap and the identity Predef, this is more readable than using x => x, e.g.

myRdd.flatMap(identity)