Function preventLayoutShift

apps/baseai.dev/src/components/Code.tsx:267–282

(callback: () => void)

	return {
		positionRef,
		preventLayoutShift(callback: () => void) {
			if (!positionRef.current) {
				return;
			}

			let initialTop = positionRef.current.getBoundingClientRect().top;

			callback();

			rafRef.current = window.requestAnimationFrame(() => {
				let newTop =
					positionRef.current?.getBoundingClientRect().top ??
					initialTop;
				window.scrollBy(0, newTop - initialTop);
			});
		}
	};
}