js code fails with jquery 3.5

[eradin]

I added jquery 3.5 to my code and I get the following error

jQuery.Deferred exception: SmoothDnD is not a function @http://localhost/sandbox/pdfjs/js/index.js:30:20
e@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:30005
l/</t<@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:30307
setTimeout handlerl/<@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:30516
c@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:28294
fireWith@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:29039
fire@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:29075
c@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:28294
fireWith@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:29039
ready@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:32012
B@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:31791
EventListener.handleEvent@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:32160
@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:220
@https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js:2:225
undefined jquery.min.js:2:31560

Uncaught TypeError: SmoothDnD is not a function
http://localhost/sandbox/pdfjs/js/index.js:30
jQuery 13

My call to smooth is the following:

var containerElement = document.getElementById('app');
var d = SmoothDnD(containerElement, {});

I'm looking to integrate a simple DnD library and this looked promising. Would like to get this up to test.