Web Development

What memo, useMemo, and useCallback still do for React performance optimization in 2026, now that the stable React Compiler handles automatic memoization at build time.

What custom hooks are actually for in 2026 now that the stable React Compiler handles automatic memoization, with a practical guide to building and sizing them well.

How the React Virtual DOM and Fiber reconciliation actually work, and how the stable React Compiler has changed what manual optimization developers still need to do in 2026.

Zustand has overtaken Redux in npm downloads. Here is a practical, 2026-current guide to choosing between Context, Zustand, and Redux Toolkit for React state management.

React 19.2’s Activity component changes how conditional rendering preserves state. A practical guide to conditions, lists, keys, and when to use each.

React 19 Actions and the useActionState, useFormStatus, and useOptimistic hooks eliminate most manual form boilerplate. Here is how they work.

React 19 lets a context render directly as a provider. A practical look at prop drilling, the Context API, use() vs useContext, and when Context is the wrong tool.

Hooks changed React more fundamentally than almost any release before or since — and the most consequential hook-related change in

Every React application, no matter how large, breaks down into the same three building blocks: components, props, and state. Meta’s

React holds 69.9% developer usage in the State of JS 2025 survey, runs on somewhere between 5.2 million and 11