Gestión de errores en Next.js con catchError

Descubre por qué «react-error-boundary» no da la talla en el enrutador de aplicaciones de Next.js y cómo «catchError» de Next.js 16.2 soluciona tanto la propagación de errores del marco como la recarga de datos del servidor con una sola llamada a una función.

Gestión del estado en React: useReducer, Context y almacenes externos

Descubre cuándo conviene ir más allá de `useState` en React. Esta guía aborda `useReducer`, el patrón de contexto dividido, almacenes externos como Zustand, el estado del servidor con TanStack Query y `useSyncExternalStore`.

Cómo escribir hooks personalizados en React: patrones, errores comunes y cuándo recurrir a ellos

Una guía práctica para escribir hooks personalizados de React: los patrones a los que sustituyen, las reglas que deben seguir, cuándo extraer uno y las bibliotecas que se encargan del resto.

Security in React Applications

Learn how to secure React apps: prevent XSS with DOMPurify, store tokens safely in HttpOnly cookies, validate server inputs with Zod, and configure Content Security Policy.

Accessibility in React: Common Mistakes and How to Fix Them

A look at the most common accessibility mistakes in React applications: missing semantics, broken focus management, unlabeled elements, and silent dynamic updates. Covers what to fix, when to use component libraries, and how to audit your app.

TanStack Start and Router: What You Need to Know

An overview of TanStack Start and TanStack Router — type-safe routing, validated search params, server functions, middleware, SSR, and how to get started.

AI Coding in React: What You Still Need to Know

AI tools like Cursor and Copilot make React development faster, but your React knowledge determines how good the output is. Here's what you need to know.

React Server Components in Practice: Patterns and Pitfalls

Practical patterns for React Server Components: where to place the server/client boundary, composing Server and Client Components, avoiding data fetching waterfalls, streaming with Suspense, serialization rules, and common pitfalls.

React Docs Refresh: useActionState and useOptimistic

The React docs for useActionState and useOptimistic have been rewritten with clearer naming, new interactive sandboxes, and patterns from simple pending states to shopping carts with error recovery. Here's what changed and why it matters.