title: Determining if checkbox is checked in Ionic 2
body: <p>How can I determine if a ion-checkbox is checked in Ionic 2.</p>
  
  <pre><code>   &lt;ion-item *ngFor="let a of q.Answers"&gt;
        &lt;ion-label&gt;{{a.AnswerDescription}}&lt;/ion-label&gt;
        &lt;ion-checkbox (click)="addValue($event)"&gt;&lt;/ion-checkbox&gt;
     &lt;/ion-item&gt;
  </code></pre>
  
  <p>the following return <code>undefined</code></p>
  
  <pre><code> addValue(e): void {
       var isChecked = e.currentTarget.checked;
       console.log(isChecked);//undefined
  
   }
  </code></pre>