JSFiddle - React, Tailwind, and code Playground

by adelura

HTML

<input name="something" type="text"></input>
<p></p>

JavaScript

var input = document.getElementsByTagName('input')[0],
    paragraph = document.getElementsByTagName('p')[0];

input.addEventListener('keyup', function (e) {
  paragraph.innerText = input.value.split('').reverse().join('');
});