How to redirect to an external URL in Angular2?

You can use this-> window.location.href = '...';

This would change the page to whatever you want..

An Angular approach to the methods previously described is to import DOCUMENT from @angular/common (or @angular/platform-browser in Angular < 4) and use

document.location.href = 'https://stackoverflow.com';

inside a function.

some-page.component.ts

import { DOCUMENT } from '@angular/common';
...
constructor(@Inject(DOCUMENT) private document: Document) { }

goToUrl(): void {
    this.document.location.href = 'https://stackoverflow.com';
}

some-page.component.html

<button type="button" (click)="goToUrl()">Click me!</button>

Check out the platformBrowser repo for more info.