title: angular 2 observable , subscribe not working
body: <p>I am doing basic test of angular observable to observe keyup of a textbox, i am not getting any error but subscribe is not working in this, so nothing coming in console from it..</p>
  
  <pre><code>import {Component} from 'angular2/core';
  import {Observable} from 'rxjs/Rx';
  
  @Component({
      selector: 'appobserve',
      template: `
        &lt;b&gt;Angular 2 Component Using Observables!&lt;/b&gt;
  
        &gt; input id="search" type="text" name="search" class="form-control" &gt;
      `
  })
  export class ObserveComponent {
    constructor() {
        console.log('startedbbb');
          var keyups = Observable.fromEvent($('#search'),'keyup');
          keyups.subscribe(function(ev) { console.log("click", ev) });
    }
  }
  </code></pre>