Javascript：在元素上添加隐藏类

Question

<ul class="dropdown-menu">
   <li><a href="javascript:void(0);"><div class="menu-name sub-list-item" sb_action="my_ads">Mes annonces</div></a></li>
   <li><a href="javascript:void(0);"><div class="menu-name sub-list-item" sb_action="my_feature_ads">Annonces Premium</div></a></li>    

I want to add the class .ishidden to the second "li" element.

This is what I have done (not working for some reasons):

   const sb_actionID = "my_features_ads";
 const EL_features=document.querySelector(`[sb_action="${sb_actionID}"]`);
 if (EL_features) {
 EL_features.closest("ul > li").classList.add('is-hidden');

  }

Answer 1

You have a typo in:

const sb_actionID = "my_features_ads";

It should be

const sb_actionID = "my_feature_ads";

and the parent is a.

You want the parents parent

Answer 2

你的父节点div是a不li 。