shortcut-manager-usage2.ts

// register Shift key as shortcut
this._shortcutManager.shortcut$(ShortcutKey.Shift)
  .pipe(takeUntil(this._destroy$$))
  .subscribe(keyboardEvents => this.updateRoute(keyboardEvents));
  
// register W key as shortcut
this._subscription = this._shortcutManager.shortcut$(ShortcutKey.W)
  .pipe(
    // we're only interested in "keydown"
    filter(keyboardEvents => keyboardEvents != null)
  ).subscribe(_ => this._tooltipService.hide());