JSFiddle - React, Tailwind, and code Playground
HTML
<div class="wrapper">
<div class="element">
<input id="test--1" value="ABC"/>
</div>
</div>
JavaScript
let x = document.querySelector(".element");
let y = x.cloneNode(true);
y.children[0].id = "test--2";
y.children[0].defaultValue = "";
x.parentNode.insertBefore(y, x.nextSibling);
console.log(y);