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