JSFiddle - React, Tailwind, and code Playground

HTML

<div id="example">
<ul>
<li>
    <a class="sth">val</a>
        <a class="sth">val</a>
        <a class="sth">val2</a>
        <a class="sth">val3</a>
        <a>val</a>
            <a>val</a>
            <a>val</a>
            <a>val</a>
</li>
</ul>
</div>

<button type="submit" id="find">find</button>
<div id="test"></div>

JavaScript

$("#find").click(function (){
                        $("#example").find('a.sth').each(function(){
                            $("#test").append($(this));
                        });
                     });