Further optimize the empty/remove/cleanData logic.

[jquery.git] / src / data.js

diff --git a/src/data.js b/src/data.js
index 0049a9f..20c134a 100644 (file)
--- a/src/data.js
+++ b/src/data.js
@@ -132,3 +132,22 @@ jQuery.fn.extend({
                });
        }
 });
+
+var removeExpando = function( elem ) {
+       delete elem[ expando ];
+};
+
+try {
+       var div = document.createElement("div");
+       div[ expando ] = true;
+       delete div[ expando ];
+       
+} catch( e ) {
+       // IE has trouble directly removing the expando
+       // but it's ok with using removeAttribute
+       removeExpando = function( elem ) {
+               if ( elem.removeAttribute ) {
+                       elem.removeAttribute( expando );
+               }
+       };
+}
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