JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Обработка строк</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="myscript.js"></script>
</head>
<body>
<form id="form">
<p>Строка 1:
<input type="text" name="string1" /></p>
<p>Строка 2:
<input type="text" name="string2" /></p>
</form>
<button name="ok"/>Результат</button>
</body>
</html>

JavaScript

function shuffle(array) {
  var currentIndex = array.length, temporaryValue, randomIndex ;

  // While there remain elements to shuffle...
  while (0 !== currentIndex) {

    // Pick a remaining element...
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;

    // And swap it with the current element.
    temporaryValue = array[currentIndex];
    array[currentIndex] = array[randomIndex];
    array[randomIndex] = temporaryValue;
  }

  return array;
}