Task

Show how to concatenate two arrays in your language.



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




 
arr1 = [1, 2, 3]
arr2 = [4, 5, 6]
arr3 = [7, 8, 9]
arr4 = arr1 + arr2
see arr4
see nl
arr5 = arr4 + arr3  
see arr5
 