Software engineer
Victor Leão
Most tutorials show the steps. I write about why they work.
Latest articles
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The Most Underrated React Optimization: Component Tree Organization
Two structural patterns that eliminate unnecessary React re-renders without React.memo — 4,000%+ in benchmarks, and what React Compiler still leaves to you. - react
The Definitive Mental Model for useEffect — No More Bugs, No More Guessing
Most useEffect bugs come from fighting the linter instead of understanding it. This article builds the mental model from first principles — purity, reactive values, and dependency correctness — so the warnings finally make sense.
Recent experiments
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Treeact — React Tree Planner
An interactive React component tree planner — place state, context providers, and consumers, and instantly see which components re-render as a result.
React · TypeScript
React Lab
A benchmark comparing good and bad component tree organization, showing the real difference each makes to React rendering performance.
React