title: Model Change in reactive form
body: <p>In the angular model Form I can show a mask in the field and save a value without the mask in the template. How do I do this with reactive forms?</p>
  
  <p><code>maskService.getCNPJ = [/\d/, /\d/, /\d/, '.', /\d/, /\d/, /\d/, '.', /\d/, /\d/, /\d/, '-', /\d/, /\d/]</code></p>
  
  <p><code>maskService.unmask = (value) =&gt; value.replace(/\D+/g, '')</code></p>
  
  <p><strong>Model Form</strong></p>
  
  <pre><code>&lt;input type="tel" class="form-control" [(ngModel)]="data.cnpj" name="cnpj" [textMask]="{mask: maskService.getCNPJ, guide: false}" (ngModelChange)="data.cnpj = maskService.unmask($event)"&gt;
  </code></pre>