navigate in angular 5 code example

Example 1: angular navigate using component

//ng new routing-app --routing
//ng generate component first
//ng generate component second
    
import { Router } from '@angular/router';

...

export class AboutUserComponent implements OnInit {
  user: User;

  constructor(
    private route: ActivatedRoute, 
    private service: UserService,
    private router: Router
  ) {}

  ngOnInit() {
    // grab the current username
    let username = this.route.snapshot.params['username'];
    this.service.getUser(username).then(user => this.user = user);
  }

  goBack() {
    this.router.navigate(['/about']);
  }

}

Example 2: angular navigate using component

import {Router} from '@angular/router'; // import router from angular router

export class Component{ 				// Example component.. 
	constructor(private route:Router){} 
  
  	go(){
		this.route.navigate(['/page']); // navigate to other page
	}
}

Example 3: angular routing url params

const appRoutes: Routes = [
  { path: 'crisis-center/:param1', component: CrisisListComponent },
  { path: 'hero/:param2',      component: HeroDetailComponent },
];

@NgModule({
  imports: [
    RouterModule.forRoot(
      appRoutes,
      { enableTracing: true } // <-- debugging purposes only
    )
    // other imports here
  ],
  ...
})
export class AppModule { }