lib/glimmer/data_binding/observable_array.rb in glimmer-2.0.0 vs lib/glimmer/data_binding/observable_array.rb in glimmer-2.0.1

@@ -128,9 +128,18 @@
         super.tap do
           notify_observers
         end
       end
       
+      def shift
+        shifted_element = first
+        unregister_dependent_observers(shifted_element)
+        remove_element_observers(shifted_element)
+        super.tap do
+          notify_observers
+        end
+      end
+      
       def delete(element)
         unregister_dependent_observers(element)
         remove_element_observers(element)
         super(element).tap do
           notify_observers