simplify2

Author: Narretz

src/ng/directive/ngOptions.js

@@ -432,7 +432,10 @@ var ngOptionsDirective = ['$compile', '$document', '$parse', function($compile,
 
       var options;
       var ngOptions = parseOptionsExpression(attr.ngOptions, selectElement, scope);
-
+      // This stores the newly created options before they are appended to the select.
+      // Since the contents are removed from the fragment when it is appended,
+      // we only need to create it once.
+      var listFragment = $document[0].createDocumentFragment();
 
       var renderEmptyOption = function() {
         if (!providedEmptyOption) {
@@ -637,7 +640,6 @@ var ngOptionsDirective = ['$compile', '$document', '$parse', function($compile,
         options = ngOptions.getOptions();
 
         var groupElementMap = {};
-        var listFragment = $document[0].createDocumentFragment();
 
         // Ensure that the empty option is always there if it was explicitly provided
         if (providedEmptyOption) {