JSFiddle - React, Tailwind, and code Playground
by Artem
HTML
<form action="" id="f">
<input type="text" required id="input">
<button id="btn">Submit</button>
</form>
JavaScript
'use strict';
input.addEventListener('invalid', (e) => {
console.log(e.target);
});
f.requestSubmit();
console.log(f.reportValidity());