September 2017 Update

Task/Array-concatenation/Hy/array-concatenation.hy

@@ -0,0 +1,15 @@
+=> (setv a [1 2 3])
+=> a
+[1, 2, 3]
+
+=> (+ a [4 5 6]) ; returns the concatenation
+[1, 2, 3, 4, 5, 6]
+=> a
+[1, 2, 3]
+
+=> (.extend a [7 8 9]) ; modifies the list in place
+=> a
+[1, 2, 3, 7, 8, 9]
+
+=> (+ [1 2] [3 4] [5 6]) ; can accept multiple arguments
+[1, 2, 3, 4, 5, 6]