Fixed #1854 by using wizzud's suggestion. The only real difference is the code is...

[jquery.git] / src / selector.js

diff --git a/src/selector.js b/src/selector.js
index c35fbb1..6e916a2 100644 (file)
--- a/src/selector.js
+++ b/src/selector.js
@@ -320,7 +320,11 @@ jQuery.extend({
                        // :not() is a special case that can be optimized by
                        // keeping it out of the expression list
                        if ( m[1] == ":" && m[2] == "not" )
-                               r = jQuery.filter(m[3], r, true).r;
+                               // optimize if only one selector found (most common case)
+                               if ( /^.[^:#\[\.]*$/.test(m[3]) )
+                                       r = jQuery.filter(m[3], r, true).r;
+                               else
+                                       r = jQuery.removeFromArray(jQuery.multiFilter(m[3], r), r);
 
                        // We can get a big speed boost by filtering by class here
                        else if ( m[1] == "." )