$()

in js/theme.js [270:281]


  $(caption).each(function () {
    var menuName = this.innerText.replace(/[^\w\s]/gi, "").trim();
    $(this).find("span").addClass("checked");
    if (collapsedSections.includes(menuName) == true && collapseAdded && sessionStorage.getItem(menuName) !== "expand" || sessionStorage.getItem(menuName) == "collapse") {
      $(this.firstChild).after("<span class='expand-menu'>[ + ]</span>");
      $(this.firstChild).after("<span class='hide-menu collapse'>[ - ]</span>");
      $(this).next("ul").hide();
    } else if (collapsedSections.includes(menuName) == false && collapseAdded || sessionStorage.getItem(menuName) == "expand") {
      $(this.firstChild).after("<span class='expand-menu collapse'>[ + ]</span>");
      $(this.firstChild).after("<span class='hide-menu'>[ - ]</span>");
    }
  });