21 lines
519 B
TypeScript
21 lines
519 B
TypeScript
import { useRef, useEffect } from 'react';
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export function useFadeInRef() {
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const ref = useRef<HTMLDivElement>(null);
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useEffect(() => {
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const el = ref.current;
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if (!el) return;
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const observer = new IntersectionObserver(
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([entry]) => {
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if (entry.isIntersecting) {
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el.classList.add('fade-in-visible');
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observer.unobserve(el);
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}
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},
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{ threshold: 0.15 }
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);
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observer.observe(el);
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return () => observer.disconnect();
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}, []);
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return ref;
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}
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