How I replaced hand-rolled optimistic UI code with React 19's useOptimistic hook. Real patterns, gotchas from two weeks of production, and when to skip it.
I turned on the React Compiler in a real Next.js app, deleted a pile of useMemo and useCallback, and watched what broke. Honest field notes…
htmx or React in 2026? After shipping both, here's when I reach for htmx, when I stay on React, and why the online essays get…
The React 19 use() hook quietly replaced my useEffect+useState fetch dance and my useContext guards. Here's what works, where it breaks, and how I ship…
How I stopped writing Next.js API routes for mutations, what Server Actions actually replaced, the bugs they caused me, and where I still keep API…
Six months of React Suspense in production: where I reach for it, where I don't, and the gotchas I wish I'd known before I started…
React 19's useOptimistic hook replaced my hand-rolled optimistic UI: instant likes and messages with automatic rollback. Here's how I use it, with code.
React 19 forms, useActionState, and useOptimistic with before-and-after code. The features I actually kept after upgrading, and the one I'm still careful with.
I switched on the React Compiler in a real app and deleted most of my useMemo and useCallback calls. Here's what changed and where it…