title: How to dynamically append value to ion-textarea?
body: <p>I'm new to ionic, angular. How can I dynamically append string values to an ion-textarea. </p>
  
  <p>I know I can replace the value of the whole text area by using string interpolation like below. But how can I append values? I.e. add to the existing content. </p>
  
  <pre><code>            &lt;ion-textarea 
              formControlName="message" 
              spellcheck="form" placeholder="write here...." 
              auto-grow 
              rows="2"
              value="{{appendedValue}}"
              &gt;
              &lt;/ion-textarea&gt;
  </code></pre>