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Jul 03, 2026
react-performance
Custom hooks look like plain functions, but they carry hidden performance costs. Here's how beginner-level hook code differs from the patterns experienced React developers reach for.
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Jul 03, 2026
react-performance
Long tasks, blocked main threads, and sluggish interactions usually trace back to JavaScript execution time. Here are the practical questions to ask when you're diagnosing this in a React app.
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Jul 03, 2026
react-performance
By the end of this guide, you'll be able to diagnose whether your rendering strategy is causing a specific performance problem and apply the correct fix instead of guessing.
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Jul 02, 2026
react-performance
Lighthouse scores and real-user Core Web Vitals often disagree, sometimes by a wide margin. Here's what the data shows about measuring performance correctly in React.
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Jul 02, 2026
react-performance
React Compiler promises to eliminate manual useMemo and useCallback calls. Here is a practical, step-by-step look at how it works and how to adopt it safely.
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Jun 30, 2026
react-performance
I'm often asked whether to use CSS or a library like Framer Motion for React animations. Here's the 3-step decision process I use to guarantee a smooth 60fps.
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Jun 28, 2026
react-performance
I've seen React apps grind to a halt during heavy computations. The problem isn't React, it's the single-threaded nature of JavaScript. Here's how we use Web Workers to fix it.
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Jun 26, 2026
react-performance
I profiled a React app that felt sluggish despite simple component logic. The problem wasn't the code we wrote, but the massive third-party libraries we imported. Here's how to diagnose and fix it.
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Jun 24, 2026
react-performance
I was asked to diagnose a React app failing its Core Web Vitals. The culprit was image handling. Here is the step-by-step process we followed to fix it.
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Jun 22, 2026
react-performance
Dependency array issues are responsible for a large share of the React bugs I get asked to debug. Here is what causes them under the hood and how to fix each variant.