Angular window resize event

I would like to perform some tasks based on the window re-size event (on load and dynamically).

Currently I have my DOM as follows:

<div id="Harbour">
    <div id="Port" (window:resize)="onResize($event)" >
        <router-outlet></router-outlet>
    </div>
</div>

The event correctly fires

export class AppComponent {
    onResize(event) {
        console.log(event);
    }
}

How do I retrieve the Width and Height from this event object?

Thanks.