Discussion on: Fullscreen toggle functionality in Angular using Directives.

[Adithya Sreyaj]

private isMaximizedSubject = new BehaviorSubject(false);
isMaximized$ = this.isMaximizedSubject.pipe();
// Another way
isMaximized$ = this.isMaximizedSubject.asObservable();

Both ways convert the subject into an observable. So you convert subjects to observables and expose only the observables to make sure consumers cannot call next() and emit values.

Update: I have changed it to asObservable as I don't want to create this impression. Using asObservable is probably the better approach.

[Umair Hafeez]

Yeah, I've seen the usage of "asObservable()" more often.

[Adithya Sreyaj]

And I guess that's the best approach. So I've updated the code to reflect the same.

Thanks.