JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head>
<script>
    function limpar() {
        document.getElementById('txtArea').value = '';
    }
</script>
</head>
<body>
    <textarea id="txtArea"></textarea>
    <button id="limpar" onclick="limpar();">Limpar</button>
</body>
</html>