Hello, AngularJS !

<!doctype html>
<html ng-app>
  <head>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
  </head>
  <body>
    <div>
      Name: <input ng-model="name">
      <h1>Hello {{name}} !</h1>
    </div>
  </body>
</html>