fix(ngOptions): ignore object properties which start with $

Author: baconmania

src/ng/directive/select.js

@@ -406,6 +406,7 @@ var selectDirective = ['$compile', '$parse', function($compile,   $parse) {
               modelValue = ctrl.$modelValue,
               values = valuesFn(scope) || [],
               keys = keyName ? sortedKeys(values) : values,
+              key,
               groupLength, length,
               groupIndex, index,
               locals = {},
@@ -429,8 +430,17 @@ var selectDirective = ['$compile', '$parse', function($compile,   $parse) {
 
           // We now build up the list of options we need (we merge later)
           for (index = 0; length = keys.length, index < length; index++) {
-               locals[valueName] = values[keyName ? locals[keyName]=keys[index]:index];
-               optionGroupName = groupByFn(scope, locals) || '';
+            
+            key = index;
+            if (keyName) {
+              key = keys[index];
+              if ( key.charAt(0) === '$' ) continue;
+              locals[keyName] = key;
+            }
+
+            locals[valueName] = values[key];
+
+            optionGroupName = groupByFn(scope, locals) || '';
             if (!(optionGroup = optionGroups[optionGroupName])) {
               optionGroup = optionGroups[optionGroupName] = [];
               optionGroupNames.push(optionGroupName);

test/ng/directive/selectSpec.js

@@ -692,6 +692,21 @@ describe('select', function() {
       expect(jqLite(element.find('option')[0]).text()).toEqual('blank');
     });
 
+    it('should ignore $ and $$ properties', function() {
+      createSelect({
+        'ng-options': 'key as value for (key, value) in object',
+        'ng-model': 'selected'
+      });
+
+      scope.$apply(function() {
+        scope.object = {'regularProperty': 'visible', '$$private': 'invisible', '$property': 'invisible'};
+        scope.selected = 'regularProperty';
+      });
+
+      var options = element.find('option');
+      expect(options.length).toEqual(1);
+      expect(sortedHtml(options[0])).toEqual('<option value="regularProperty">visible</option>');
+    });
 
     describe('binding', function() {