Angular 4 @HostListener Window scroll event strangely does not work in Firefox

Question

I\'m using @HostListener(\'window:scroll\', []) in Angular 4 app in order to add additional class to the header on scrolling. It works fine in Chrome but I noti

Answer 1

try this:

@HostListener('window:scroll', ['$event'])
onWindowScroll($event) {
    console.log("scrolling...");
}

I prefer this:

this.eventSubscription = Observable.fromEvent(window, "scroll").subscribe(e => {
                this.onWindowScroll();
            });