From 25f40ffb3902eb36d4fecc55fc3b8fa9dc84dc5e 2014-01-16 10:57:16
From: Jonathan Frederic <jdfreder@calpoly.edu>
Date: 2014-01-16 10:57:16
Subject: [PATCH] remove length test add_class and remove_class

---

diff --git a/IPython/html/static/notebook/js/widgets/widget.js b/IPython/html/static/notebook/js/widgets/widget.js
index c4df7ee..2b3c2f6 100644
--- a/IPython/html/static/notebook/js/widgets/widget.js
+++ b/IPython/html/static/notebook/js/widgets/widget.js
@@ -261,17 +261,11 @@ function(widget_manager, underscore, backbone){
         },
 
         add_class: function (selector, class_list) {
-            var elements = this._get_selector_element(selector);
-            if (elements.length > 0) {
-                elements.addClass(class_list);
-            }
+            this._get_selector_element(selector).addClass(class_list);
         },
         
         remove_class: function (selector, class_list) {
-            var elements = this._get_selector_element(selector);
-            if (elements.length > 0) {
-                elements.removeClass(class_list);
-            }
+            this._get_selector_element(selector).removeClass(class_list);
         },
     
         update: function () {