Task

Show how to concatenate two arrays in your language.



If this is as simple as array1 + array2, so be it.




 
> (++ '(1 2 3) '(4 5 6))
(1 2 3 4 5 6)
> (: lists append '(1 2 3) '(4 5 6))
(1 2 3 4 5 6)
 