Fix #7717 and #7165. Thanks to dmethvin and iliakan for their help fixing these issues.

[jquery.git] / src / data.js

diff --git a/src/data.js b/src/data.js
index f1e031f..120fe71 100644 (file)
--- a/src/data.js
+++ b/src/data.js
@@ -9,7 +9,7 @@ jQuery.extend({
        // Please use with caution
        uuid: 0,
 
-       // Unique for each copy of jQuery on the page   
+       // Unique for each copy of jQuery on the page
        expando: "jQuery" + jQuery.now(),
 
        // The following elements throw uncatchable exceptions if you
@@ -21,6 +21,10 @@ jQuery.extend({
                "applet": true
        },
 
+       hasData: function( elem ) {
+               return !elem.nodeType || (elem[ jQuery.expando ] && !jQuery.isEmptyObject(jQuery.cache[ elem[jQuery.expando] ]));
+       },
+
        data: function( elem, name, data ) {
                if ( !jQuery.acceptData( elem ) ) {
                        return;
@@ -144,7 +148,7 @@ jQuery.fn.extend({
                                        var attr = this[0].attributes, name;
                                        for ( var i = 0, l = attr.length; i < l; i++ ) {
                                                name = attr[i].name;
-       
+
                                                if ( name.indexOf( "data-" ) === 0 ) {
                                                        name = name.substr( 5 );
                                                        dataAttr( this[0], name, data[ name ] );