The author shares steps to optimize a React app by reducing unnecessary re-renders, especially in a chat layout. Techniques include using React DevTools for profiling, moving state into the appropriate components, and understanding the browser's rendering process through Interaction to Next Paint (INP). Key advice involves colocating state, measuring performance before optimizing, and understanding the rendering process for effective optimization.
Table of contents
Permalink IntroductionPermalink Chat layoutPermalink Let's profile with React DevToolsPermalink The problemPermalink JSX variables not visible in DevToolsPermalink When to use JSX variablesPermalink How to solve this issuePermalink How to think in ReactPermalink INP (bonus)Permalink React inner workingsPermalink Conclusion2 Comments
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