title: angular 6 ng-select how to set item selected in drop down list by using template expression
body: <p>In Angular 6 project, I am trying to use <strong>ng-select</strong> node package. I am facing the difficulty to set item selected in dropdown list while using template expression. Without template expression, I am able to set item selected in dropdown list. </p>
  
  <p>I have created a demo project in stackblitz. Pls check the code here <a href="https://stackblitz.com/edit/ngselect-demo" rel="nofollow noreferrer">https://stackblitz.com/edit/ngselect-demo</a></p>