Initial data commit

Task/Array-concatenation/JavaScript/array-concatenation-1.js

@@ -0,0 +1,3 @@
+var a = [1,2,3],
+    b = [4,5,6],
+    c = a.concat(b); //=> [1,2,3,4,5,6]

Task/Array-concatenation/JavaScript/array-concatenation-2.js

@@ -0,0 +1,16 @@
+(function () {
+    'use strict';
+
+    // concat :: [[a]] -> [a]
+    function concat(xs) {
+        return [].concat.apply([], xs);
+    }
+
+
+   return concat(
+      [["alpha", "beta", "gamma"],
+      ["delta", "epsilon", "zeta"],
+      ["eta", "theta", "iota"]]
+  );
+
+})();