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@@ -28,6 +28,13 @@
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             element.fn('name1').should("==", 1);
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             element.fn('name2').should("==", 2);
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           });
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+          it("applies bound functions to each item in a collection", function() {
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+            var elements = $("<div></div>").add($("<div></div>"));
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+            var i = 0;
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+            elements.fn({ call: function() { i++ } });
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+            elements.fn('call');
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+            i.should("==", 2);
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+          });
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         });
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       });
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     </script>

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@@ -14,12 +14,16 @@
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   function define(self, name, fn) {
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     self.data(namespacedName(name), fn);
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   };
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-  function apply(self, name, arguments) {
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-    var fn = self.data(namespacedName(name));
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-		if (fn)
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-    	return fn.apply(self, arguments);
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-		else
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-		  throw(name + " is not defined");
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+  function apply(self, name, args) {
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+    var result;
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+    self.each(function(i, item) {
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+      var fn = $(item).data(namespacedName(name));
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+      if (fn)
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+        result = fn.apply(item, args);
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+      else
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+        throw(name + " is not defined");
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+    });
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+    return result;
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   };
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   function namespacedName(name) {
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     return 'fn.' + name;