JSFiddle - React, Tailwind, and code Playground
HTML
<form style="width:440px;" action="./" method="post" id="newsletter">
<input type="text"/>
<input type="submit" value="Submit"/>
</form>
JavaScript
$(document).ready(function() {
$("#newsletter").submit(function(event) {
event.preventDefault();
var element = this;
setTimeout(function() {
alert("submitted");
element.submit();
}, 2000);
});
});