Dynamically Adding Route Components

Rather than define each route's component separately, use RouterOutlet which serves as a component placeholder; Angular dynamically adds the component for the route being activated into the <router-outlet></router-outlet> element.
import { Component } from '@angular/core';
selector: 'app',
template: `
<a routerLink="/component-one">Component One</a>
<a routerLink="/component-two">Component Two</a>
<!-- Route components are added by router here -->
export class AppComponent {}
In the above example, the component corresponding to the route specified will be placed after the <router-outlet></router-outlet> element when the link is clicked.