Jquery .toggle（）对附加元素无效

我正在制作手机菜单。我的代码如下

$(document).ready(function () {
    $("#hamburger").click(function () {
        if (window.innerWidth <= 1000) {
            $("#nav_links, #search_bar").slideToggle(1000); 
            $("#hamburger i").toggleClass('fa-bars').toggleClass('fa-times'); 

            $('.header-links').toggle("slide", { direction: "bottom" }, 1000);
            $('.links').toggle("slide", { direction: "bottom" }, 1000);
        }
    });

    $('.user-name').click(function () {
        if (window.innerWidth <= 1000) {
            $('.top_nav').toggle("slide", { direction: "bottom" }, 1000);  // this .toggle() is not working
            $('body header .dropdown-container ul.dropdown-menu').toggle("slide", { direction: "bottom" }, 1000);  // this .toggle() is not working
        }
    });
});

试试这个

$('.user-name').click(function () {
   if (window.innerWidth <= 1000) {
      $('.top_nav').slideToggle("slow");
      $('body header .dropdown-container ul.dropdown-menu').slideToggle("slow");
   }
});

$（'.user name'）。单击（函数（）{
如果（window.innerWidth
$('.user-name').click(function () {
   if (window.innerWidth <= 1000) {
      $('.top_nav').slideToggle("slow");
      $('body header .dropdown-container ul.dropdown-menu').slideToggle("slow");
   }
});