AlexWebLab

Explore a wide range of web development topics, from JavaScript to React and beyond, and uncover valuable insights to enhance your skills.

Latest 2 articles:

Accessibility Fundamentals for Engineers: Semantics, Focus, and Reduced Motion

May 1, 2026Rendering & Frameworks

Accessibility is an implementation discipline, not a finishing pass. Semantic HTML, keyboard support, focus management, and reduced-motion preferences all have to be built into the interface from the start.

Optimistic UI Rollback: How to Update Instantly and Handle Failures Gracefully

April 27, 2026Security & Architecture

Optimistic UI dramatically improves perceived performance by applying state changes before the server confirms them. But this requires a robust rollback strategy for when the server rejects the change — and getting rollbacks right is where most implementations fall short.

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