10 articles tagged #React
Is your React Query UI showing outdated data even after a successful mutation? Learn why stale data appears after mutations and how to fix it using query invalidation, cache updates, optimistic updates, query keys, and best practices with TanStack Query.
Is your React component showing outdated state after calling setState inside an async event handler? Learn how automatic batching works in modern React, why state updates appear delayed, and how to write predictable, bug-free state management code.
Memory leaks in React applications are often blamed on forgotten event listeners or timers, but stale closures created by React Hooks are another major culprit. Learn how stale closures retain outdated state and objects in memory, why they happen, and how to eliminate them using modern React best.
Memory leaks in React applications aren't always caused by forgotten event listeners or timers. Stale closures created by React Hooks can keep references to outdated state, props, and objects alive far longer than expected. Learn why stale closures occur, how they contribute to memory leaks,
useReducer is one of React's most powerful state management hooks, but many developers are surprised when reducer state resets after a component re-mount. Learn why state disappears, what causes unexpected re-mounts, and how to preserve application state across renders, navigation, and UI updates.
You wrapped a function in useCallback, but child components still re-render on every update. This guide breaks down exactly why useCallback fails silently and shows you the specific fixes that actually stop unnecessary renders.
React Context is convenient until it starts re-rendering every consumer on every tiny state change. Learn exactly why this happens and the practical patterns you can use to stop it dead in its tracks.
Your useEffect is running twice on every mount and you have no idea why. It's not a bug in your code — React 18 does this on purpose in development. Here's what's happening and how to handle it correctly.
You finish building a Next.js application, push it to GitHub, and now comes the deployment decision. Almost everyone suggests Vercel because the company created Next.js. Others recommend Cloudflare Pages because it's cheaper, globally distributed, and often faster at the edge.
Creating a Django REST API for a To-Do List project is a great way to practice working with Django and the Django REST Framework (DRF). DRF provides a powerful, flexible API layer, while React enhances the user experience with interactive and responsive design.