4-8 digits

}); }; const observer = new MutationObserver(() => { markPlaygroundPreviewCards(); }); if (document.body) { observer.observe(document.body, { childList: true, subtree: true }); } document.addEventListener( "DOMContentLoaded", markPlaygroundPreviewCards, { once: true } ); setInterval(markPlaygroundPreviewCards, 1800); })();