title: How to auto select the first element with ng-repeat in angular?
body: <p>Could you please help me to auto select the first item for the menu on the left. 
  here is my code : <a href="https://next.plnkr.co/edit/4pGTMsVlSiFo7eoS?preview" rel="nofollow noreferrer">https://next.plnkr.co/edit/4pGTMsVlSiFo7eoS?preview</a></p>