From 88512026c90c172856410894cb7095e73e8a2b7a Mon Sep 17 00:00:00 2001
From: Eric Leung <eric@erictleung.com>
Date: Wed, 6 Apr 2016 23:13:25 -0700
Subject: [PATCH] Add head code to prevent Declare JS Vars bug

---
 .../basic-javascript.json                                 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/seed/challenges/01-front-end-development-certification/basic-javascript.json b/seed/challenges/01-front-end-development-certification/basic-javascript.json
index 5193d537dcb..0ee5f1fab9c 100644
--- a/seed/challenges/01-front-end-development-certification/basic-javascript.json
+++ b/seed/challenges/01-front-end-development-certification/basic-javascript.json
@@ -100,6 +100,14 @@
         "Assign the contents of <code>a</code> to variable <code>b</code>."
       ],
       "releasedOn": "January 1, 2016",
+      "head": [
+        "if (typeof a != 'undefined') {",
+        "  a = undefined;",
+        "}",
+        "if (typeof b != 'undefined') {",
+        "  b = undefined;",
+        "}"
+      ],
       "challengeSeed": [
         "// Setup",
         "var a;",