To register javascript file in 16/layouts
you should write with 15, sharepoint will translate it in 16 : <script type="text/javascript" src="/_layouts/15/testFDI/jquery.min.js"></script>
To register javascript file in 16/layouts
you should write with 15, sharepoint will translate it in 16 : <script type="text/javascript" src="/_layouts/15/testFDI/jquery.min.js"></script>