The-implementation-of-the-selected-state-of-the-node-js-routing

  • Obtain the current URL with the JavaScript API window.location.href of the original soundtrack
  • Intercepting the parameters of URL by split method
  • You can pass arguments at the back of the route
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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>navigation active</title>
</head>
<body>
    <nav >
        <ul id="navigation">
            <li ><a href="/">Home</a></li>
            <li ><a href="/about">About</a></li>
            <li ><a href="/help">Help</a></li>
            <li ><a href="/contact">Contact</a></li>
            <li ><a href="/tems">Terms</a></li>
        </ul>
</nav>
<script type="text/javascript">
    (function(){
      var navigation = document.getElementById("navigation");
      var navigation_node_li = navigation.getElementsByTagName('li');
      var navigation_node_a = navigation.getElementsByTagName('a');
       var  index = 0;
       var  url = window.location.href.split('?')[0].split('/').pop(); 
        if(url){
           for (var i=navigation_node_a.length; i--;) {
               if(navigation_node_a[i].href.indexOf(url) !== -1){
                   index = i;
                   break;
               }
           }
       }
       navigation_node_li[index].className = 'active';
   })();
</script>
</body>
</html>