url param
// ...
import { ActivatedRoute } from '@angular/router';
import 'rxjs/add/operator/filter';
@Component({ ... })
export class BookComponent implements OnInit {
category: string;
constructor(private route: ActivatedRoute) { }
ngOnInit() {
this.route.queryParams
.filter(params => params.category)
.subscribe(params => {
console.log(params); // { category: "fiction" }
this.category = params.category;
console.log(this.category); // fiction
}
);
}
}