Example js module 2

popover.js

(function ($, $popover) {

  /**
   * @param {{}|undefined}options
   * @returns {{on: Function, off: Function}}
   * @constructor
   */
  var Popover = function (options) {
    options = $.extend({
      delegateElement: document,
    }, options || {});

    /**
     * @param {Event} event
     */
    var _close = function (event) {
      $('.popover').popover('hide');
    };

    // public
    return {
      on: function () {
        $(options.delegateElement)
          .on('click', '.popover .close', _close)
          .on('show.bs.popover', _close);
      },

      off: function () {
        $(options.delegateElement)
          .off('click', '.popover .close', _close)
          .off('show.bs.popover', _close);
      }
    };
  };

  // pass module to app, one of way
  $(document).trigger('js.load', ['popover', Popover]);
})(jQuery, jQuery.fn.popover);