From ac5b9055f6d7224e5e8e49941c0fc9cb16c64a7e Mon Sep 17 00:00:00 2001
From: Pawel Kozlowski <pkozlowski.opensource@gmail.com>
Date: Sat, 3 Aug 2013 17:57:37 +0200
Subject: [PATCH] fix(jqLite): forgive unregistration of a non-registered
 handler

---
 src/jqLite.js      | 2 +-
 test/jqLiteSpec.js | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/jqLite.js b/src/jqLite.js
index fc8fba07..1bcd9224 100644
--- a/src/jqLite.js
+++ b/src/jqLite.js
@@ -205,7 +205,7 @@ function JQLiteUnbind(element, type, fn) {
       removeEventListenerFn(element, type, events[type]);
       delete events[type];
     } else {
-      arrayRemove(events[type], fn);
+      arrayRemove(events[type] || [], fn);
     }
   }
 }
diff --git a/test/jqLiteSpec.js b/test/jqLiteSpec.js
index 6aafd1f8..5b9a122c 100644
--- a/test/jqLiteSpec.js
+++ b/test/jqLiteSpec.js
@@ -843,6 +843,12 @@ describe('jqLite', function() {
       aElem.unbind('click', function() {});
     });
 
+    it('should do nothing when a specific listener was not registered', function () {
+      var aElem = jqLite(a);
+      aElem.bind('click', function() {});
+
+      aElem.unbind('mouseenter', function() {});
+    });
 
     it('should deregister all listeners', function() {
       var aElem = jqLite(a),