anchor.diff:              '&lt;/ul&gt;' +
               '&lt;input #textbox (keyup)="doneTyping($event)">' +
               '&lt;button (click)="addTodo(textbox.value)"&gt;Add Todo&lt;/button&gt;',
  -          directives: [angular.NgFor, angular.NgIf]
  +          directives: [angular.NgFor]
           })
         ];
   
  
positive.code:   code-tabs
      code-pane(language="javascript" name="TypeScript" format="linenums").
        //TypeScript
        import {Component, View, bootstrap, NgFor, NgIf} from 'angular2/angular2';
  
        @Component({
          selector: 'todo-list'
  
negative.code:       @View({
          template: `
            &lt;ul&gt;
              &lt;li *ng-for="#todo of todos"&gt;
                {{ todo }}
              &lt;/li&gt;
            &lt;/ul&gt;
  