<h1>Angular Router App</h1>
<!-- This nav gives you links to click, which tells the router which route to use (defined in the routes constant in AppRoutingModule) -->
<nav>
<ul>
<li><a routerLink="/first-component" routerLinkActive="active">First Component</a></li>
<li><a routerLink="/second-component" routerLinkActive="active">Second Component</a></li>
</ul>
</nav>
<!-- The routed views render in the <router-outlet>-->
<router-outlet></router-outlet>


navigasyon için router link kullanmanız gerekli

https://angular.io/guide/router#!