import { useEffect } from "react"; export function useSetClassName(params: { qualifiedName: "html" | "body"; className: string | undefined }) { const { qualifiedName, className } = params; useEffect(() => { if (className === undefined || className === "") { return; } const htmlClassList = document.getElementsByTagName(qualifiedName)[0].classList; const tokens = className.split(" "); htmlClassList.add(...tokens); return () => { htmlClassList.remove(...tokens); }; }, [className]); }