Software engineer building web products with React, Next.js and TypeScript.https://www.juliobenavente.comen-ushttps://www.juliobenavente.com/blog/you-might-not-need-useeffecthttps://www.juliobenavente.com/blog/you-might-not-need-useeffectMost effects in React code are derived state, event handlers or data fetching in disguise. Here is how to spot them and what to write instead.Tue, 27 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/react-server-components-explainedhttps://www.juliobenavente.com/blog/react-server-components-explainedWhat runs on the server, what runs in the browser, and how to draw the use client boundary so you ship less JavaScript.Mon, 26 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/react-19-actions-useoptimistichttps://www.juliobenavente.com/blog/react-19-actions-useoptimisticReact 19 turned form submission into a first-class feature. Here is how Actions, useActionState and useOptimistic replace the loading and error state you used to write by hand.Sun, 25 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/react-suspense-and-streaminghttps://www.juliobenavente.com/blog/react-suspense-and-streamingSuspense lets a slow part of the page wait without blocking the rest. Here is how loading.tsx, streaming, error boundaries and parallel fetching fit together, and the mistakes I see most.Sat, 24 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/react-state-management-guidehttps://www.juliobenavente.com/blog/react-state-management-guideuseState, useReducer, Context, Zustand and TanStack Query solve different problems. Here is how I pick one, where Context re-renders bite, and when a store is actually justified.Fri, 23 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/accessible-react-componentshttps://www.juliobenavente.com/blog/accessible-react-componentsMost accessibility bugs in React come from five places: lost focus, mouse-only controls, silent updates, broken modals and ignored motion settings. Here are the patterns I use and the tests that catch them.Thu, 22 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/how-react-rendering-workshttps://www.juliobenavente.com/blog/how-react-rendering-worksA clear mental model of render and commit, what triggers a re-render, how reconciliation and keys work, and why index keys break.Tue, 20 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/make-your-react-app-fasterhttps://www.juliobenavente.com/blog/make-your-react-app-fasterHow I find a slow React app's real bottleneck, then fix it in order of impact: bundle size, long lists, images, re-renders and Core Web Vitals.Tue, 13 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/usememo-usecallback-react-memohttps://www.juliobenavente.com/blog/usememo-usecallback-react-memoMemoization only pays off when there is a measured cost. Here is what each tool does, when it is wasted, and what to try first.Tue, 06 Oct 2026 00:00:00 GMThttps://www.juliobenavente.com/blog/improve-inp-in-reacthttps://www.juliobenavente.com/blog/improve-inp-in-reactINP scores how fast a page responds to clicks, taps and keys. Here is what it measures and the React and browser fixes that move it.Tue, 29 Sep 2026 00:00:00 GMT