Prevent jQuery multiple reference

Question

I am developing DNN modules and I am using jQuery in some modules, I add the jQuery reference to the top of each ascx file, by the way when user add multiple modules to the

Answer 1

You could make small script to check if jQuery is present on the page, and only if is not present, load it:

// 'load-jquery.js'
window.onload = function () {
  if (window.jQuery === undefined) {
    var script = document.createElement('script');
    script.src = 'path/to/jquery.min.js';
    document.getElementsByTagName('head')[0].appendChild(script); // load jQuery
  }
};