Dart Model View Control Test

mvc.dart

import 'dart:html';
import 'dart:math';

class View{
 var button, text, listener;
	View(Function f){
    button = querySelector("#button");
		text = querySelector("#text");
    listener = button.onClick.listen(f);
  }
  setText(String s){
    text.innerHtml = s;
  }
}

class Model{
  final array = [
    "Hallo", 
    "Hi",
    "Grüß Gott"
  ];
  getRandomData(){
    return array[new Random().nextInt(array.length)];
  }
}

class Controller{
  var view, model;
  Controller(){
    model = new Model();
    view = new View((e){
      view.setText(model.getRandomData());
    });
  }
}

main() => new Controller();

test.html

<button id="button">Drücken!</button>
<span id="text"></>