A zipper with a list of selected elements.
Note: If all zipper elements are of the same type, use Zipper.ListListList instead. It has a simpler API.
Zipper.ListListListZipper.StringStringStringCreate a new Zipper
make "hello" == ( "hello", "hello" )Set selection to last element
Set selection to last element
Set selection to last element
Set selection to last element
Set selection to last element
A list type that must contain at least one element