AngularJS Example:

by Frank van Puffelen

HTML

<script src="https://cdn.firebase.com/js/client/2.2.7/firebase.js"></script>
<script src="https://cdn.firebase.com/libs/angularfire/1.1.1/angularfire.min.js"></script>
<div ng-app='app'>
  <h2>Stopwatch</h2>
  <div ng-controller="StopwatchCtrl">
      <pre ng-model='time'></pre>
      <pre>{{time | json}}</pre>
  </div>
</div>

JavaScript

var ref = new Firebase('https://blinding-inferno-7068.firebaseio.com/rooms/444/users/user0/time');

angular.module('app', ['firebase'])

.controller('StopwatchCtrl', function ($scope, $firebaseObject) {
    $scope.time = $firebaseObject(ref);
});

setTimeout(new function() {
    ref.set(new Date().toString());
}, 1000);