perf(jqLite): optimize append() and after()

Author: IgorMinar

src/jqLite.js

@@ -262,8 +262,9 @@ function jqLiteDealoc(element, onlyDescendants){
 function jqLiteOff(element, type, fn, unsupported) {
   if (isDefined(unsupported)) throw jqLiteMinErr('offargs', 'jqLite#off() does not support the `selector` argument');
 
-  var events = jqLiteExpandoStore(element, 'events');
-  var handle = jqLiteExpandoStore(element, 'handle');
+  var expandoStore = jqLiteExpandoStore(element);
+  var events = expandoStore && expandoStore.events;
+  var handle = expandoStore && expandoStore.handle;
   var i;
   var types;
 
@@ -803,11 +804,15 @@ forEach({
   },
 
   append: function(element, node) {
-    forEach(new JQLite(node), function(child){
-      if (element.nodeType === 1 || element.nodeType === 11) {
-        element.appendChild(child);
-      }
-    });
+    var nodeType = element.nodeType;
+    if (nodeType !== 1 && nodeType !== 11) return;
+
+    node = new JQLite(node);
+
+    for (var i = 0, ii = node.length; i < ii; i++) {
+      var child = node[i];
+      element.appendChild(child);
+    }
   },
 
   prepend: function(element, node) {
@@ -836,10 +841,13 @@ forEach({
 
   after: function(element, newElement) {
     var index = element, parent = element.parentNode;
-    forEach(new JQLite(newElement), function(node){
+    newElement = new JQLite(newElement);
+
+    for (var i = 0, ii = newElement.length; i < ii; i++) {
+      var node = newElement[i];
       parent.insertBefore(node, index.nextSibling);
       index = node;
-    });
+    }
   },
 
   addClass: jqLiteAddClass,