Make setting .css(name, undefined) a no-op. Fixes #4388.

[jquery.git] / src / css.js

diff --git a/src/css.js b/src/css.js
index 07ff686..61cdc48 100644 (file)
--- a/src/css.js
+++ b/src/css.js
@@ -20,6 +20,11 @@ var ralpha = /alpha\([^)]*\)/,
        };
 
 jQuery.fn.css = function( name, value ) {
+       // Setting 'undefined' is a no-op
+       if ( arguments.length === 2 && value === undefined ) {
+               return this;
+       }
+
        return jQuery.access( this, name, value, true, function( elem, name, value ) {
                return value !== undefined ?
                        jQuery.style( elem, name, value ) :