The react.wiki Blog
Tutorials and deep dives for React developers.
When useState Lies to You (And Why That’s By Design)
useState doesn’t hold values—it holds *promises*. Its “lies” (frozen reads, delayed writes, closure-scoped snapshots) aren’t bugs—they’re deliberate abstractions that uphold React’s consistency contract.
6/22/2026 · 5 min read
Why Your React Dashboard Lags at 50Hz (And What to Do Instead)
Learn why high-frequency telemetry (like drone attitude at 50Hz) crashes React’s render cycle—and how to keep your dashboard smooth by moving state updates *outside* the React reconciliation path.
6/22/2026 · 6 min read
The Prompt Stack: Building a Reusable AI Interface for React Native Teams
How top React Native teams treat prompts as versioned, testable engineering artifacts—complete with governance, CI validation, and onboarding workflows—just like linters or config files.
6/21/2026 · 7 min read
useTransition() for Perceived Performance: Smarter UI Feedback Without Loading Spinners
Learn how React’s `useTransition()` and `isPending` state let you defer non-urgent updates—like data fetches or form submissions—while keeping the UI instantly responsive and visually coherent.
6/21/2026 · 6 min read
The useState Setter Queue Trap: Why Functional Updates Aren’t Always Enough in React
Learn how React’s batching and setter queuing can cause stale state reads—even with functional updates—and why useReducer or custom coordination hooks are safer for async state logic.
6/21/2026 · 6 min read
TypeScript + React Server Components: Typed Props Without Client-Side Bloat
Learn how to derive strict, runtime-validated prop types for React Server Components using Zod—while keeping client components lightweight, type-safe, and free from Zod bundle overhead.
6/21/2026 · 6 min read
React.memo Deep Dive: When It Helps, When It Hurts, and How to Measure
Learn how to profile memoization impact with React DevTools and `console.time`, and avoid common pitfalls like over-memoizing callbacks or breaking referential equality in nested lists.
6/21/2026 · 5 min read
The Hidden Cost of useEffect Dependencies: When [] Lies to You
useEffect’s empty dependency array `[]` promises “run once,” but closures, stale state, and prop drift often break that promise—here’s how to detect and fix it with ESLint, DevTools, and modern patterns.
6/21/2026 · 6 min read
useId() in Action: Solving SSR Hydration Mismatches Without Refs
Learn how React’s `useId()` hook eliminates hydration errors in server-rendered forms and dynamic lists—no refs, no workarounds, just deterministic, stable IDs across SSR and client render.
6/21/2026 · 6 min read