I would suggest using rxjs.
Add a global `clickSubscription: Subscription` in your component; then in `ngOnInit` you can do:
ngOnInit(): void { this.clickSubscription = fromEvent(document, 'click').subscribe(event => { console.log(event); }) }

and in `ngOnDestroy`:
ngOnDestroy(): void { this.clickSubscription.unsubscribe(); }

I would suggest using rxjs:
import { fromEvent, Subscription } from 'rxjs';
Add a global `clickSubscription: Subscription` in your component; then in `ngOnInit` you can do:
ngOnInit(): void { this.clickSubscription = fromEvent(document, 'click').subscribe(event => { console.log(event); }) }

and in `ngOnDestroy`:
ngOnDestroy(): void { this.clickSubscription.unsubscribe(); }