WordPress: add javascript event after widget save

I’m writing a widget that uses color picker, whenever widget save the color picker will went missing. if i can add an event after the widget saved, then this problem can be solved easily. This is mainly because of the ajax call that occurred during the widget save. However, i can’t find any reference from the WordPress documentation. God bless, there jQuery come with some handy function that can be used as a work around to solve this problem

To add an javascript event after widget save, follow the steps below:-

1. Save code below into a js file and enqueue the js file from your widget constructor

   jQuery(document).ajaxSuccess(function(e, xhr, settings) {
     alert('my widget just saved');
     // you may put your own action here
   });

2. Now you may try to save your widget and you should see the alert pop up.

Happy coding