https://www.dotnetcore.xyz/js/common.js

1var dotnet = {
2      parent : function(node ,targetClass){
3           while(node){
4            if(node.nodeType == 1 && node.classList.contains(targetClass)){
5              return node;
6            }
7            node = node.parentNode;
8        }
9      }
10    }
11;(function(){
12  var screenWidth = window.innerWidth;
13  if(screenWidth < 768){
14      var navMenu = document.querySelector("#navMenu"),
15          openNavBtn = document.querySelector("#openNavMenu"),
16          overlay    = document.createElement("div");
17
18      overlay.classList.add("navMenu-overlay");
19      document.body.appendChild(overlay);
20        
21      navMenu.addEventListener("touchstart",function(e){
22        var target = dotnet.parent(e.target,"item-link");
23            target && target.classList.add("active-status");
24      }); 
25      navMenu.addEventListener("touchend",function(e){
26        var target = dotnet.parent(e.target,"item-link");
27            target && target.classList.remove("active-status");
28      });
29      
30      openNavBtn.addEventListener("touchend",function(){
31          document.body.classList.add("open");
32          setTimeout(function(){
33              overlay.addEventListener("touchend",openMenu);
34          },1)
35      });
36      var openMenu = function(){
37        document.body.classList.remove("open");
38        overlay.removeEventListener("touchend",openMenu);
39        return false;
40      }
41  }
42})();