title: How to emit an event from parent to child?
body: <p>I am currently using Angular 2. Usually we use <code>@Output() addTab = new EventEmitter&lt;any&gt;();</code> and then <code>addTab.emit()</code> to emit an event to parent component.</p>
  
  <p>Is there any way we can do it vice cersa, from parent to child?</p>