anchor.diff:  [source,javascript]
   ----
   getUsers(){
  -    this.users = this._userService.getUsers().subscribe((users) => {
  +    this._userService.getUsers().subscribe((users) => {
           this.users = users;
       });
   }
  
positive.code:             .get('http://localhost:3000/user')
              .map((res) => { return <User[]>res.json(); });
      }
  
  }
  ----
  
  
negative.code: 
  [source,javascript]
  ----
  constructor(userService: UserService){
  	this._userService = userService;
  	this.users = this.getUsers();
  }
  