Name
union — Unions of lists
Synopsis
list
union
( |
list
LIST1
, |
| |
list
LIST2
); |
Parameters
-
list
LIST1
First List
-
list
LIST2
Second List
Description
Interprets two lists as sets and returns a new list that has all elements of the first list and all of the second list. Identical elements are merged. The order of the elements in the new list is preserved. Elements of l1 are prior to elements from l2. nil as either argument makes the result nil too.
WARNING: quadratic complexity so far
Usage
union ([1, 2], [3, 4]) -> [1, 2, 3, 4]
union ([1, 2, 3], [2, 3, 4]) -> [1, 2, 3, 4]
union ([1, 3, 5], [1, 2, 4, 6]) -> [1, 3, 5, 2, 4, 6]
