$('#catalog ul li').each(function (m) {

<script src="

<ul>

<li data-num="40"></li>

<li data-num="433"></li>

<li data-num="407"></li>

<li data-num="194"></li>

<li data-num="100"></li>

<li data-num="539"></li>

<div class="mybox" style="min-height:75vh;">

<li data-num="554"></li>

<li data-num="273"></li>

<li data-num="504"></li>

<li data-num="415"></li>

<link rel="stylesheet" type="text/css" href="https://cdn.shucdn.com/css/style.css">

<li data-num="254"></li>

<li data-num="347"></li>

activeSubjectsObject.value = htmlArr[j];

<li data-num="394"></li>

<li data-num="178"></li>