JavaScript Angular 2, subscribe when coordinates are received angular subscribe when to unsubscribe,angular subscribe when done,angular

I'm learning Angular 2. I'm using a LocationService with an Observable that hands me the coordinates after some time. This is my code.

location.service.ts

public getLocation(): Observable<any> {
    return Observable.create(observer => {
        if(window.navigator && window.navigator.geolocation) {
            window.navigator.geolocation.getCurrentPosition(
                (position) => {
                    observer.next(position);
                    observer.complete();
                },
                (error) => observer.error(error)
            );
        } else {
            observer.error('Unsupported Browser');
        }
    });
}

app.component.ts

ngOnInit() {
    this.location.getLocation().subscribe((coordinates) => {
        this.lat = coordinates.coords.latitude;
        this.lng = coordinates.coords.longitude;
    });
}

How can I subscribe to the receiving of the coordinates so I can render a map, add a marker, .. once I receive them from the first subscribe.

Answer:1

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