Frontend

A spring 2026 roundup: container queries in production, view transitions, improved observability APIs, and what to adopt vs. wait on.

RSC is powerful when the mental model clicks. Lessons from production apps on boundaries, caching, and what still belongs on the client.

Explore the fascinating world of WeChat Mini Programs - the revolutionary app-within-app platform that transformed mobile development in China. Learn about architecture, development patterns, and technical implementation.

Master frontend live coding interviews with practical React component exercises. Learn data fetching, infinite scroll, form handling, and optimization techniques with step-by-step implementations.

Master your senior frontend engineer interview with this comprehensive guide covering system design, performance optimization, testing strategies, and modern best practices. Includes real-world examples and proven techniques.

Master web performance optimization with proven techniques for faster loading, better Core Web Vitals, and superior user experience. Covers general web apps and React-specific optimizations.

Master frontend unit testing with Jest, React Testing Library, and API mocking. Learn testing strategies, best practices, and real-world examples for bulletproof applications.

Master frontend monitoring with Sentry, performance tracking, and error management. Learn to build bulletproof user experiences with comprehensive observability.

Master frontend system design interviews with the proven RADIO framework. Learn how to structure your approach and tackle complex design problems with confidence.

Master file upload implementation in frontend applications with practical examples, security considerations, and performance optimization techniques.

A comprehensive guide to using FormData API in frontend development, covering file uploads, form handling, and advanced techniques for modern web applications.