title: Angular 6 : How to get router event even when navigated to same route
body: <p>How to get router event even when navigated to same route, for examples I have three route</p>
  
  <ul>
  <li>route1</li>
  <li>route2</li>
  <li>route3</li>
  </ul>
  
  <p>How can I catch event from Router while navigating to route1 from route 1, same route. </p>