X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fcore.js;h=c9076b682d9a6a6b2c9c3494f47ae9af319f9d54;hb=ba48be3ada51aee683ce5992c5f00a8458f385f8;hp=6b497fdcf1e6684dba3bc6f43d6bcf9658fb0ba9;hpb=789ad4f769a63fbb9eafd806ebf9e835d6fc771b;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 6b497fd..c9076b6 100644
--- a/src/core.js
+++ b/src/core.js
@@ -1194,15 +1194,11 @@ jQuery.extend({
 		for ( var i = 0, length = elems.length; i < length; i++ ) {
 			var value = callback( elems[ i ], i );
 
-			if ( value !== null && value != undefined ) {
-				if ( value.constructor != Array )
-					value = [ value ];
-
-				ret = ret.concat( value );
-			}
+			if ( value != null )
+				ret[ ret.length ] = value;
 		}
 
-		return ret;
+		return ret.concat.apply( [], ret );
 	}
 });