Introduction to Scala Part2 : Collections


Open Source Your Knowledge, Become a Contributor

Technology knowledge has to be shared and made accessible for free. Join the movement.

Create Content

Traversable : Addition

  • Operation ++
  • Goal: appends two traversables together, or appends all elements of an iterator to a traversable.
> List(1, 2, 3) ++ List(4, 5, 6)
res0: List[Int] = List(1, 2, 3, 4, 5, 6)
concatate two lists
concatate an empty list with a list
Open Source Your Knowledge: become a Contributor and help others learn. Create New Content