title: Cannot hide week number ngx-bootstrap daterangepicker
body: <p>I am unable to hide week numbers in ngx-bootstrap daterange picker.
  What i tried:</p>
  
  <p>.html</p>
  
  <pre><code> &lt;input type="text" #dp="bsDaterangepicker" (onHidden)="onPickerHide()"  [isOpen]="showPicker"  [(ngModel)]="dateRange" style="position: absolute;visibility: hidden;" placeholder="Daterangepicker" class="form-control" bsDaterangepicker [bsConfig]="dateRangePickerConfig"&gt;
  </code></pre>
  
  <p><strong>app.component.ts</strong></p>
  
  <pre><code>showPicker= true;
  datePickerConfig: Partial&lt;BsDatepickerConfig&gt;;
  this.datePickerConfig = Object.assign({},
            { showWeekNumbers: false,
             dateInputFormat: 'DD-MM-YYYY'
             }
          );
  </code></pre>
  
  <p>I get this console error</p>
  
  <p><a href="https://i.stack.imgur.com/eevud.png" rel="nofollow noreferrer">enter image description here</a></p>