What is Route Params in Angular2?

What is Route Params in Angular 2?

The route parameter is used to map given URL's parameters based on the rout URLs and it is an optional parameters for that route.

Firstly will need to import from '@angular2/router' in the components file.

params : {[key: string]: string}

Example as,
import { Component } from '@angular/core';
import { ActivatedRoute } from '@angular/router';

    selector: 'user',
    templateUrl: './user.component.html',
    styleUrls: ['./user.component.css'],
    providers: [UserService, AppGlobals]

export class UserComponent {
    private userid: string;
    private subUser;
    constructor(private _route: ActivatedRoute) {

    ngOnInit() {
        this.subUser = this._route.params.subscribe(params => {
            this.userid = params['userid'];

    ngOnDestroy() {

Angular2 - Routing Concepts

What is Routing in Angular 2? What is Routes?
What is Router Imports? What is RouterOutlet?
Is it possible to have a multiple router-outlet in the same template? What is RouterLink?


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