https://www.radial.com/wp-content/themes/radial/assets/js/menu.js?ver=1790219271

1(function ($) {
2  window.addEventListener('load', (e) => {
3    const $utilityMenu = $('.utility-menu .menu-item:not(.wpml-ls-item):not(.menu-item__search)').clone(true);
4    const $utilityWrapper = $('<div class="utility-wrapper">');
5    const $utilityWrapperInner = $('<div class="utility-wrapper__inner" role="list"></div>');
6    // The wrapper is a child of the navigation ul, so it has to be a list item
7    // for the list to stay a list. display: contents keeps the wrapper itself
8    // as the laid-out box, the same way the logo item is inserted in header.js.
9    const $utilityWrapperItem = $('<li class="utility-wrapper-item"></li>').css('display', 'contents');
10    $utilityWrapperInner.append($utilityMenu);
11    $utilityWrapper.append($utilityWrapperInner);
12    $utilityWrapperItem.append($utilityWrapper);
13    $utilityMenu.addClass('utility-link');
14    $utilityWrapperItem.insertBefore($('#mega-menu-max_mega_menu_1 > li.mega-menu-item:last-of-type'));
15
16    $("ul.max-mega-menu").on("after_mega_menu_init", function (element) {
17      var menu = jQuery(this);
18
19      $("li.mega-menu-item.mega-menu-item-has-children > a.mega-menu-link > span.mega-indicator").on('click', function (e) {
20        const $currentParent = $(e.target).closest('li.mega-menu-item.mega-menu-item-has-children');
21        const levelSiblings = $currentParent.siblings('li.mega-menu-item.mega-menu-item-has-children.mega-toggle-on');
22
23        levelSiblings.each(function (index, element) {
24          const $currentLevelElement = $('> a.mega-menu-link', $(element));
25          const nestedElements = $('li.mega-menu-item.mega-menu-item-has-children.mega-toggle-on > a.mega-menu-link', $(element));
26          menu.data('maxmegamenu').hidePanel($currentLevelElement, true)
27
28          nestedElements.each(function (index, nestedElement) {
29            menu.data('maxmegamenu').hidePanel($(nestedElement), true);
30          });
31        });
32
33      });
34    });
35  });
36})(jQuery);