From efc1fee2421db6f80f730d3d075ebde59534a76c Mon Sep 17 00:00:00 2001
From: Jason Grout <jgrout6@bloomberg.net>
Date: Mon, 15 Dec 2014 17:38:03 +0000
Subject: [PATCH] Fix javascript iteration through array

for(var k in config) was assigning k to the properties of Array, not just the numeric indices

the second argument of add_buttons_group, k[1], should be config[k][1]
---
 IPython/html/static/notebook/js/toolbar.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/IPython/html/static/notebook/js/toolbar.js b/IPython/html/static/notebook/js/toolbar.js
index eba6e110d..a008a0def 100644
--- a/IPython/html/static/notebook/js/toolbar.js
+++ b/IPython/html/static/notebook/js/toolbar.js
@@ -26,8 +26,8 @@ define([
 
 
     ToolBar.prototype.construct = function (config) {
-        for(var k in config){
-            this.add_buttons_group(config[k][0],k[1]);
+        for(var k=0; k<config.length; k++) {
+            this.add_buttons_group(config[k][0],config[k][1]);
         }
     };
 
@@ -54,7 +54,7 @@ define([
      *      ]
      *
      *  For backward compatibility this also support the
-     *  old methods of adding busson directly bound to callbacks:
+     *  old methods of adding a button directly bound to callbacks:
      *  @example
      *      # deprecate, do not use
      *      IPython.toolbar.add_buttons_group([