Ng5- Diff type of routerLink implmentation

Diff type of routerLink implmentation
============================
<nav>
    <a routerLink='/home'></a>
    <a routerLink='/about'></a>
</nav>

case:1
-----
<div *ngFor="let user of userList" [routerLink]="['detail', uer.name]"> {{ user.name }} </div>

case:2
-----
(click)="showUserDetails(user)"

Incase we do the navigation from component function means
 showUserDetails(user){
    this.router.navigate(['user', user.login]);
  }


to make the router navgation implement  routerLink='/home'
If you use parameter passing in router link [routerLink]="['detail', uer.name]"