JSFiddle - React, Tailwind, and code Playground
by jmpp77
HTML
<input type="checkbox" id="accepter" name="accepter">
<label for="accepter">Accepter les conditions</label>
<button type="submit" disabled>Valider</button>
JavaScript
const box = document.getElementById('accepter');
const submitButton = document.querySelector('button[type="submit"]');
box.addEventListener('click', () => {
submitButton.disabled = !box.checked;
});