javascript - Automatically Add Class To Subchild & Parent LI With jQuery -


i have been searching hours solution problem , none of them seem work way like. need jquery automatically add class "active" main li , child li if on page.

first code block simple structure, second code block how needs if on "billing_forecast.php" page. 

<aside id="sidebar">  <!--| main menu |-->          <ul id="side-menu" class="side-menu">              <li>                  <a href="index.php">                      <i class="zmdi zmdi-home"></i>                      <span>home</span>                  </a>              </li>              <li class="sm-sub sms-bottom">                  <a href="">                      <i class="zmdi zmdi-money zmdi-hc-fw"></i>                      <span>billing</span>                  </a>                  <ul>                      <li><a href="billing_stats.php">statistics</a></li>                       <li><a href="billing_forecast.php">revenue estimator</a></li>                                                                                </ul>              </li>                                                                                  </ul>  </aside>

<aside id="sidebar">  <!--| main menu |-->          <ul id="side-menu" class="side-menu">              <li>                  <a href="index.php">                      <i class="zmdi zmdi-home"></i>                      <span>home</span>                  </a>              </li>              <li class="active sm-sub sms-bottom">                  <a href="">                      <i class="zmdi zmdi-money zmdi-hc-fw"></i>                      <span>billing</span>                  </a>                  <ul>                      <li><a href="billing_stats.php">statistics</a></li>                       <li class="active"><a href="billing_forecast.php">revenue estimator</a></li>                                                                                </ul>              </li>                                                                                  </ul>  </aside>

here's example came with:

<ul id="side-menu" class="side-menu">     <li>         <ul>             <li><a href="/test/">link</a></li>         </ul>     </li> </ul>   <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script> <script type="text/javascript"> $(function(){     var path_name = window.location.pathname;      if( $('.side-menu a[href="'+path_name+'"]').length ){         $('.side-menu a[href="'+path_name+'"]').parent('li').addclass('active');         $('.side-menu a[href="'+path_name+'"]').parent('li').parent('ul').parent('li').addclass('active')     }  }); </script>

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