JSFiddle - React, Tailwind, and code Playground

HTML

<ol id="myList1">
    <li>Apple</li>
    <li>Pear</li>
    <li>Peach</li>
</ol>
<ol id="myList2">
    <li>Orange</li>
</ol>
<script>    document.querySelector('#myList1').appendChild(document.querySelector("#myList2>li"));
</script>