JSFiddle - React, Tailwind, and code Playground

by Radioactive

HTML

<ul class="first">
    <li class="list">1
        <a>1</a>
    </li>
    <li>2</li>
    <li class="list">3
        <a>3</a>
    </li>
    <li class="list">4
        <a>4</a>
    </li>
    <li>5</li>
    <li>6</li>
    <li class="list">7
        <a>7</a>
    </li>
</ul>
<br />
<ul class="second">
</ul>

CSS

ul{list-style:none;padding:5px;margin:0;border:1px solid #ddd;}

JavaScript

$("ul.first li.list").each(function(){
$(this).clone().appendTo("ul.second");
});