Excuse my typos... 

  // Subscription collection so we can unsubscribe from them on destroy
  private _subscriptions: Subscription[] = [];

  // OnInit Hook, triggered each time the component is instantiated
  public ngOnInit(): void {
    // Add to our subscriptions collection
    this._subscriptions.push(
      // Subscribe to the ActivatedRoute for paramMap changes 
      this.route.paramMap.subscribe((paramMap) => {
        // Retrieve the view named parameter
        const view = paramMap.get('view');
        // Check if we have a defined view
        if (view) {
          // Trigger the view switch
          this.currentView(view);
        }
      })
    );
  }

  // OnDestroy Hook
  public ngOnDestroy() {
    // Unsubscribe from each Subscription
    this._subscriptions.forEach((subscription: Subscription) => { 
subscription.unsubscribe() });
  }

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