title: @ViewChild angular 2 not working width ion-textarea
body: <p>I want to get the value of ion-textarea inside component in Ionic 2 but I have always this error </p>
  
  <blockquote>
    <p>Cannot read property 'value' of undefined</p>
  </blockquote>
  
  <p><strong>Code HTML:</strong></p>
  
  <pre><code>&lt;ion-textarea   #preferences id="preferences" placeholder="Veuillez mentionner vos préferences"&gt;&lt;/ion-textarea&gt;
  </code></pre>
  
  <p><strong>component .ts:</strong></p>
  
  <pre><code>@ViewChild('preferences') m_preferences;
  let preferences : this.m_preferences.nativeElement.value;
  </code></pre>