core: Fixed #2605: .data() now accepts null as a value.

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index b6bdc1d..f6f0bd5 100644 (file)
--- a/src/core.js
+++ b/src/core.js
@@ -465,13 +465,13 @@ jQuery.fn = jQuery.prototype = {
                var parts = key.split(".");
                parts[1] = parts[1] ? "." + parts[1] : "";
 
-               if ( value == null ) {
+               if ( value === undefined ) {
                        var data = this.triggerHandler("getData" + parts[1] + "!", [parts[0]]);
                        
-                       if ( data == undefined && this.length )
+                       if ( data === undefined && this.length )
                                data = jQuery.data( this[0], key );
 
-                       return data == null && parts[1] ?
+                       return data === undefined && parts[1] ?
                                this.data( parts[0] ) :
                                data;
                } else