React useIntersectionObserver Hook
React useIntersectionObserver hook for viewport visibility detection. Lazy loading, infinite scroll, animations. TypeScript ready.
React useIntersectionObserver Hook preview
Detect when elements enter or leave the viewport with the native Intersection Observer API. useIntersectionObserver returns isIntersecting boolean, the full entry object, and a ref callback. Configure threshold, rootMargin, and freezeOnceVisible for lazy loading images or one-time animations. Supports both array and object destructuring. Auto-disconnects observer on unmount. Perfect for infinite scroll, fade-in effects, analytics tracking, or sticky headers. SSR safe—observer only created client-side. Works with Next.js App Router and any React framework.
Install with AI
If you've connected the shadcn.io MCP server to Claude Code, Cursor, Windsurf, or any MCP-ready AI editor, prompt your agent to install this hook for you — no copy-paste, no CLI:
use shadcnio to install the use-intersection-observer hook into my projectRelated Components
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