Frontend

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.