ngOnDestroy() {
   this.cartesianPositionChangeEventSubscription.unsubscribe();
   this.jointsChangeEventSubscription.unsubscribe();
 }

 ngOnDestroy(): void {
   this.categoryFilterSubscription.unsubscribe();
 }

	public ngOnDestroy() : void {

		( this.paramMapSubscription ) && this.paramMapSubscription.unsubscribe();

	}

 public ngOnDestroy() {
   this.breakpointSubscription.unsubscribe();
 }

 ngOnDestroy() {
   this.cardSub.unsubscribe();
 }

	ngOnDestroy() {
		this.sub.unsubscribe();
	}

 ngOnDestroy() {
   this.subscription.unsubscribe();
 }

 ngOnDestroy() {
   if (this.deleteSub) {
     this.deleteSub.unsubscribe();
   }
 }

 ngOnDestroy(){
   this.Sub.unsubscribe()
 }

 ngOnDestroy() {
     this.routeSubscriber.unsubscribe()
 }