I checked but they are already included. I declared them in an xml files that loads them when I call it, namely in the <head> of my html file, and I know it works since I can see that code in page source, and even because angular.js library works as expected.
But even if it is not completely loaded when it gets called for the first time, would I be able to perform $("#sortable").jqxSortable();
in the JS console? Because it doesn’t work either..