2016 Update

Task/Towers-of-Hanoi/JavaScript/towers-of-hanoi-2.js

@@ -0,0 +1,15 @@
+(function () {
+
+  // hanoi :: n -> s -> s -> s -> [[s, s]]
+  function hanoi(n, a, b, c) {
+    return n ? hanoi(n - 1, a, c, b).concat(
+      [[a, b]]
+    ).concat(hanoi(n - 1, c, b, a)) : [];
+  }
+
+  return hanoi(3, 'left', 'right', 'mid')
+  .map(function (d) {
+    return d[0] + ' -> ' + d[1];
+  });
+
+})();

Task/Towers-of-Hanoi/JavaScript/towers-of-hanoi-3.js

@@ -0,0 +1,4 @@
+["left -> right", "left -> mid",
+ "right -> mid", "left -> right",
+ "mid -> left", "mid -> right",
+ "left -> right"]