⚡ Bolt: Optimized header scroll detection and blog list filtering#69
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- Replace scroll listener in Header with IntersectionObserver for active section detection - Use passive scroll listener for isScrolled logic - Memoize nonFeaturedPosts, categories, and filteredPosts in Blog component - Wrap BlogGrid in React.memo and use useCallback for handlers - Ensure build/lint/types pass correctly
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💡 What: Optimized the header active section detection and memoized expensive computations in the blog component.
🎯 Why: The header was using a heavy scroll listener that triggered DOM queries and layout measurements on every scroll tick. The blog component was re-filtering and re-sorting its 60+ post list on every render.
📊 Impact:
IntersectionObserver.🔬 Measurement: Verified with Playwright screenshots and by running
pnpm lintandpnpm check-types.PR created automatically by Jules for task 12867194742806462730 started by @administrakt0r