React

3 posts

5/20/2025

React State Management: Context, Props, or an External Store?

Start from the pain of prop drilling, see what Context actually fixes and what it leaves unsolved, and learn to recognize when it's time to reach for an external store.

4/21/2025

Rendering and Performance: When to Reach for useMemo, useCallback, and React.memo

Understand what a React re-render actually is, then use three common performance-optimization mistakes to figure out when useMemo, useCallback, and React.memo actually earn their keep.

4/9/2025

React Hooks Fundamentals: useState and the useEffect Dependency Array

Understand closures to see why useState needs functional updates, and what the useEffect dependency array is actually comparing.