const [momentLib, setMomentLib] = useState(null); const importMoment = async () => { try { const momentDyn = await import("https://esm.sh/moment@2.29.4"); setMomentLib(momentDyn); } catch (err) { console.log(err); } }; useEffect(() => { importMoment(); }, []); return ( <div> {!momentLib ? "Loading" : momentLib.default().format("[Today is] dddd")} </div> );