Task

Show how to concatenate two arrays in your language.



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




> quackery

Welcome to Quackery.

Enter "leave" to leave the shell.

/O> ' [ [ 1 2 ] [ 3 4 ] [ 5 6 ] ] 
... ' [ [ 7 8 ] [ 9 0 ] ] join echo
... 
[ [ 1 2 ] [ 3 4 ] [ 5 6 ] [ 7 8 ] [ 9 0 ] ]
Stack empty.

/O> leave
... 

Goodbye.
