JSFiddle - React, Tailwind, and code Playground

HTML

<form action="">
    <input type="text">
    <button type="submit">Enviar</button>
</form>

JavaScript

var button = document.querySelector('button');
var form = document.querySelector('form');
button.addEventListener('click', function(e) {
    e.preventDefault();
    setTimeout(function() {
        form.submit();
    }, 5000);
});