JSFiddle - React, Tailwind, and code Playground

HTML

<div>
  <input id="copyFrom" type="text" value="yoba">
</div>

JavaScript

var input = document.getElementById('copyFrom');
var inputValue = input.getAttribute('value');

var copyTo = document.createElement("input");
copyTo.setAttribute('type', 'text');
copyTo.setAttribute('value', inputValue);

document.body.appendChild(copyTo);