JSFiddle - React, Tailwind, and code Playground

HTML

<textarea rows=8 cols=50 placeholder="Type stuff here with spaces" id="in"></textarea>
<div id="out"></div>

CSS

#out {white-space:pre-wrap}

JavaScript

document.getElementById('in').onkeyup = function() {
    document.getElementById('out').textContent = this.value;
};