A practical, scalable React dark–light theme system using CSS variables, design tokens, and SSR-safe bootstrapping—fast, accessible, and maintainable.
Build a production-ready, accessible React combobox/select with correct ARIA, keyboard support, async data, virtualization, and testing tips.
Design and implement a fast, accessible React toast system with clean APIs, animations, and promise toasts—complete code, patterns, and pitfalls.
Build an accessible, responsive React breadcrumb with dynamic routes, a11y, SEO, and examples for React Router v6 and Next.js.
Build an accessible, performant React carousel with scroll-snap and transform approaches, including drag, autoplay, and best practices.
Understand when to choose React SSR vs Static Generation. Compare performance, SEO, caching, costs, and patterns like streaming SSR, ISR, and RSC.
