Frontend perf + UX: prod build fixes #65
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Summary of Changes
Hello @MIHIR2006, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request significantly enhances the frontend's performance and user experience while resolving critical production build issues. It introduces advanced animation techniques, component memoization, and strategic dynamic imports to optimize rendering and loading times. Additionally, the changes include crucial adjustments to Next.js and Vercel configurations to ensure robust and efficient production deployments.
Highlights
- Performance Optimization: Implemented
requestAnimationFramefor smoother scroll and stock ticker animations, replacing less efficientsetIntervalanduseStateupdates for a more fluid user experience. - Build Fixes: Addressed production build issues by configuring
next.config.jsto ignore ESLint during builds and removing Vercelrewritesthat might have caused conflicts, ensuring successful deployments. - Component Memoization: Utilized
React.memoanduseMemoin several components (StockCard,StockChart) to prevent unnecessary re-renders, enhancing overall application performance. - Dynamic Imports: Converted several key components to use Next.js dynamic imports with
ssr: false, optimizing client-side rendering and potentially reducing initial bundle size. - UI/UX Refinements: Made various styling adjustments in the
Testimonialscomponent for better responsiveness and theme integration, and added aspeedPxPerSecondprop to theStockTickerfor configurable animation speed.
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Code Review
This pull request delivers significant performance and user experience improvements across the frontend. The introduction of next/dynamic for lazy loading components, the refactoring of animations to use requestAnimationFrame, and the extensive use of memoization with useMemo and React.memo are all excellent changes that will positively impact the production build. The configuration updates in next.config.js and vercel.json also appear to correctly address build and routing issues. Overall, this is a very strong set of changes. I have one minor suggestion regarding prop comparison for memoization.
| p.changePercent === n.changePercent && | ||
| p.value === n.value && | ||
| p.marketCap === n.marketCap; | ||
| const sameStyle = prevProps.className === nextProps.className && JSON.stringify(prevProps.style) === JSON.stringify(nextProps.style); |
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Using JSON.stringify for prop comparison in React.memo can be inefficient, especially for larger objects, as it requires serializing the object on every render. For style objects, a shallow comparison is generally more performant. While the performance impact is likely minimal here since the style object is small, it's a good practice to avoid JSON.stringify in memoization comparators for performance-critical components.
Prod build fixed