JQ 遍历元素并给相应元素增加class

<div class="menu_scroll">
        <div class="menu_items">
               <div class="item_cell active" data-url="index">
                    <a href="/" data-title="首页">首页</a>
               </div>
               <div class="item_cell yys" data-url="yys">
                    <a href="/yys/" data-title="应用">应用</a>
               </div>
               <div class="item_cell yxs" data-url="yxs">
                     <a href="/yxs/" data-title="游戏">游戏</a>
               </div>
               <div class="item_cell zts" data-url="zts">
                     <a href="/zts/" data-title="专题">专题</a>
               </div>
               <div class="item_cell zxs" data-url="zxs">
                     <a href="/zxs/" data-title="资讯">资讯</a>
                </div>
                <div class="item_cell jcs" data-url="jcs">
                     <a href="/jcs/" data-title="教程">教程</a>
                </div>
                <div class="item_cell hots" data-url="hots">
                     <a href="/hots/" data-title="热门标签">热门</a>
                </div>
        </div>
</div>

<script type="text/javascript">
 $(".item_cell").removeClass(‘active‘);
        const localUrl= location.href;//获取当前页链接
        console.log(localUrl);                
                var clsDatArr =localUrl.split("/");//切割链接组成数组
                var clsNam = clsDatArr[3];获取关键字符
                console.log(clsNam);
$(function(){
   $(".item_cell").each(function(){
     if($(this).hasClass(clsNam)){
          $(this).addClass(‘active‘)
     }
   });
});            
</script>