React Key Concepts (React 19): The In‑Depth Guide to Core Features, Best Practices, and Real‑World Patterns
If you’re building your next app with React, you’re probably asking two questions: what’s truly “core” today, and what changed with React 19? You don’t want a laundry list; you want a mental model and a practical path that makes production work faster, safer, and more fun. In this in‑depth guide, I’ll walk you through…