Split list into multiple lists with fixed number of elements

Question

How to split a List of elements into lists with at most N items?

ex: Given a list with 7 elements, create groups of 4, leaving the last group possibly with less elem

Answer 1

I think this is the implementation using splitAt instead of take/drop

def split [X] (n:Int, xs:List[X]) : List[List[X]] =
    if (xs.size <= n) xs :: Nil
    else   (xs.splitAt(n)._1) :: split(n,xs.splitAt(n)._2)