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Cathal Mac Donnacha

@cathalmacdonnacha.com

81 followers 168 following 125 posts

Principal Frontend Engineer @wpengine. Follow along for frontend tips on React ⚛️ Testing 🧪 UI/UX 🖥. My blog ✍️ cathalmacdonnacha.com

Posts Replies Media

Cathal Mac Donnacha @cathalmacdonnacha.com · 17/07/2025

I guess ChatGPT is training itself on my blog now 😂 #blogging #chatgpt #software

Screenshot of referrers from a blog (http://cathalmacdonnacha.com/)

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Cathal Mac Donnacha @cathalmacdonnacha.com · 18/06/2025

TIL: Chrome Dev Tools has an accessibility view ♿️ #frontend #chrome #webdev

accessibility view in chrome dev tools elements tab

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Cathal Mac Donnacha @cathalmacdonnacha.com · 28/12/2024

❌ Avoid storing derived state like totals, filters, or counts in useState. ✅ Calculate derived values directly in render from the existing state or props. Simple, clean, and avoids bugs caused by syncing issues! Learn more here: react.dev/learn/you-mi...

Code example showing redundant state along with a better alternative where you simply derive state.

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Cathal Mac Donnacha @cathalmacdonnacha.com · 03/12/2024

How am I just now discovering "Design Mode" in Chrome DevTools? ⭐️ 💻 #ChromDevTools #frontend #webdev

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Cathal Mac Donnacha @cathalmacdonnacha.com · 27/11/2024

Just updated all of my articles 🦋 😀

Reference to Twitter being replaced with BlueSky

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Cathal Mac Donnacha @cathalmacdonnacha.com · 15/11/2024

🚀 Run this command if you ever want to delete all local git branches except for "main". #git #development #software #programming

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Cathal Mac Donnacha @cathalmacdonnacha.com · 14/11/2024

🚀 Debugging tip I used to always give a label to the value I printed out in a console.log. However, a faster and cleaner way is to just print it as an object. (yes I still like to use console.log sometimes over the debugger) #javascript #frontend #webdevelopment

Code example showing use of console logging

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