title: Searchbar - search on 'enter' key
body: <p>I'm very new to Ionic framework.<br>
  Following the <a href="https://ionicframework.com/docs/v2/api/components/searchbar/Searchbar/" rel="noreferrer">docs</a> I created a searchbar like this:  </p>
  
  <pre><code>&lt;ion-searchbar
        [(ngModel)]="searchQuery"
        [showCancelButton]="true"
        (ionInput)="search($event)"&gt;
  &lt;/ion-searchbar&gt;
  </code></pre>
  
  <blockquote>
    <p>ionInput   When the Searchbar input has changed including cleared.</p>
  </blockquote>
  
  <p>This works as expected.  </p>
  
  <p>However I want a different behaviour. I don't want to trigger <code>search($event)</code> every time the input changes, but I couldn't find an <a href="https://ionicframework.com/docs/v2/api/components/searchbar/Searchbar/#output-events" rel="noreferrer">output event</a> that is emitted when the user hits the 'enter' key or clicks a button for example.  </p>
  
  <p>Is there a solution for this behaviour?</p>