router angular pass param in routing code example

Example 1: angular router with wuery param

goProducts() {
  this.router.navigate(['/products'], { queryParams: { order: 'popular' } });
}

http://localhost:4200/products?order=popular

 constructor(private route: ActivatedRoute) { }

  ngOnInit() {
    this.route.queryParams
      .filter(params => params.order)
      .subscribe(params => {
        console.log(params); // { order: "popular" }

        this.order = params.order;
        console.log(this.order); // popular
      }
    );
  }

Example 2: router navigate pass params

this.router.navigate(['action-selection'], { state: { example: 'bar' } });
...
constructor(private router: Router) {
  console.log(this.router.getCurrentNavigation().extras.state.example); 
  // should log out 'bar'
}