code: function patchEvents($el) {
      $.each(EVENT_PROPERTIES, function(eventName, properties) {
          $el.on(eventName, function(event) {
              if (event.originalEvent) {
                  properties.forEach(function(propertyName) {
                      event[propertyName] = event.originalEvent[propertyName];
                  });
              }
          });
      });
  }
docs: create event listeners that will copy the custom properties from the native events to the jQuery events, so jQuery users can use them seamlessly