X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;ds=inline;f=src%2Fcore.js;h=32e850f55292c330d6c8cc59950a8ec4390d9c0d;hb=e611289a79d959c1185d002c29093e9809b6dec8;hp=1d27616ddc0e8bf10f6c4b0f0aa58da1410f2897;hpb=615a4ce1b4c20e5b538332d0a6e19157243a9471;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 1d27616..32e850f 100644
--- a/src/core.js
+++ b/src/core.js
@@ -350,7 +350,7 @@ jQuery.fn = jQuery.prototype = {
 	},
 
 	hasClass: function( selector ) {
-		return this.is( "." + selector );
+		return !!selector && this.is( "." + selector );
 	},
 
 	val: function( value ) {