Angular2 Error: SimpleChange ( core OnChanges interface ) alternative to Angular2.0.0-beta.7
<p>I was reading this part <a href="https://angular.io/docs/js/latest/api/core/OnChanges-interface.html" rel="nofollow noreferrer">OnChanges-interface</a> the plunker below, works well is the page angular.io, but it is based on version 2.0.0-alpha.40</p>
<h2><kbd><a href="http://plnkr.co/edit/AHrB6opLqHDBPkt4KpdT?p=preview" rel="nofollow noreferrer">Plunker</a></kbd></h2>
<p>but trying to use Angular2.0.0-beta.7 and 8 no works.</p>
<p>Can something has changed?, if so what is the alternative for this case, in my IDE tells me error on the next line <code>SimpleChange</code></p>
<pre><code>  ngOnChanges(changes: {[propName: string]: SimpleChange}) &lt;-- 
</code></pre>
<p>and this plunker does not work, the sample</p>
<h2><kbd><a href="http://plnkr.co/edit/XKQl5st1OHjgkEZZ9FAn?p=preview" rel="nofollow noreferrer">Plunker</a></kbd></h2>