Added a performance improvement to preFilter.CLASS from LosT on the Sizzle.js mailing...

diff --git a/src/selector.js b/src/selector.js
index 56efd01..d7d56c2 100644 (file)
--- a/src/selector.js
+++ b/src/selector.js
@@ -332,11 +332,12 @@ var Expr = Sizzle.selectors = {
                CLASS: function(match, curLoop, inplace, result, not){
                        match = " " + match[1].replace(/\\/g, "") + " ";
 
-                       for ( var i = 0; curLoop[i] != null; i++ ) {
-                               if ( curLoop[i] ) {
-                                       if ( not ^ (" " + curLoop[i].className + " ").indexOf(match) >= 0 ) {
+                       var elem;
+                       for ( var i = 0; (elem = curLoop[i]) != null; i++ ) {
+                               if ( elem ) {
+                                       if ( not ^ (" " + elem.className + " ").indexOf(match) >= 0 ) {
                                                if ( !inplace )
-                                                       result.push( curLoop[i] );
+                                                       result.push( elem );
                                        } else if ( inplace ) {
                                                curLoop[i] = false;
                                        }