anchor.diff:          }
   
           class FriendsService {
  -          names: Array<string>;
  +          names: Array&lt;string&gt;;
             constructor() {
               <span class='otl'>this.names = ["Aarav", "Martín", "Shannon"];</span>
             }
  
positive.code:         //Typescript
          class DisplayComponent {
            myName: string;
            <span class='otl'>names: Array<string>;</span>
  
            constructor() {
              this.myName = "Alice";
  
negative.code:         //ES5
          directives: [angular.For, angular.If]
      p.
          As there are currently 6 items in the list, you'll see the message congratulating you on your many friends.
          Remove three items from the list, reload your browser, and see that the message no longer displays.
  
      code-tabs
  