const COOKIE_NAME = "hasRsvped"; function hasRsvped() { const cookies = Object.fromEntries( document.cookie.split(";").map((x) => x.trim().split("=")) ); return cookies[COOKIE_NAME] === "true"; } window.onload = function () { if (!hasRsvped()) { const rsvpButton = document.querySelector(".rsvpButton"); rsvpButton.classList.remove("hidden"); } };