angular2 navigate from function or code

angular2.navigate.snippets

import { Component, OnInit } from '@angular/core';
import {Router} from '@angular/router';


@Component({
    selector: 'app-user',
    template: `<h1>user component</h1>
        <a [routerLink]="['']">Home</a>
        <button (click)="onNavigate()">Go Home</button>
    
    `,
})
export class UserComponent implements OnInit {
    constructor(private router:Router) { }

    ngOnInit() { }
    onNavigate(){
        this.router.navigate(['/']);
    }
}