ondequeue property
      
      EventHandlerNonNull<Event> ?
      get
      ondequeue
      
    
    
    
Implementation
EventHandlerNonNull? get ondequeue => js_util.getProperty(this, 'ondequeue');
      
      set
      ondequeue
      (EventHandlerNonNull<Event> ? newValue) 
      
    
    
    
Implementation
set ondequeue(EventHandlerNonNull? newValue) {
  js_util.setProperty(this, 'ondequeue', newValue);
}