title: How to reset values in ng-select in angular
body: <p>I am using ng-select on a modal. </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="modal-body"&gt;
  &lt;div class="form-group has-feedback"&gt;
  &lt;ng-select #select name="currenies" [allowClear]="true" [items]="currencyList" [disabled]="disabled" (selected)="selected($event)" 
                          placeholder="Currency description + ISO code"&gt;
   &lt;/ng-select&gt;
  
   &lt;/div&gt;
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>After I close the modal, selected value attached to html remains constant. 
  How to reset the ng-select?</p>