title: Angular2 RxJS Observable.fromEvent(..) .map doesn't look available
body: <p>following the <a href="https://github.com/Reactive-Extensions/RxJS/blob/master/examples/autocomplete/autocomplete.js" rel="nofollow">autocomplete example</a> with RxJS. I suspect that the Observable i am using may be different from Observable in this example? </p>
  
  <p>Here is how I set it up: </p>
  
  <pre><code>@ViewChild('searchInput') input: ElementRef;
  ...
  var keyups = Observable.fromEvent(this.input.nativeElement, 'keyup')
  // this returns FromEventObservable instead of Observable which may be the reason? 
  </code></pre>
  
  <p>at this point, I can call .subscribe and see the events flow in: </p>
  
  <pre><code>keyups.subscribe( e =&gt; console.log(e));
  </code></pre>
  
  <p>however this does not show anything **** : </p>
  
  <pre><code>  keyups.map( e =&gt; console.log('e ', e) );
  </code></pre>
  
  <p>my imports look like this: </p>
  
  <pre><code>import { Observable } from 'rxjs/Rx';
  </code></pre>
  
  <p>but i've also experimented with individual imports: </p>
  
  <pre><code> import 'rxjs/add/observable/fromEvent';
   import 'rxjs/add/operator/map';
   import 'rxjs/Rx';
  </code></pre>
  
  <p>package.json</p>
  
  <pre><code>"rxjs": "5.0.0-beta.6",
  </code></pre>