1 files changed, 17 insertions, 0 deletions
diff --git a/lib/iterator.js b/lib/iterator.js
new file mode 100644
index 0000000..568171a
--- /dev/null
+++ b/lib/iterator.js
@@ -0,0 +1,17 @@
+'use strict';
+
+export default function(tasks) {
+    function makeCallback(index) {
+        function fn() {
+            if (tasks.length) {
+                tasks[index].apply(null, arguments);
+            }
+            return fn.next();
+        }
+        fn.next = function() {
+            return (index < tasks.length - 1) ? makeCallback(index + 1) : null;
+        };
+        return fn;
+    }
+    return makeCallback(0);
+}