Don't do this in React

Описание: Many React devs (including me at some point) use the index as the key when mapping over lists. But here’s why that’s a bad idea…

In this short, I explain why you should avoid using array index as a key, and what to do instead — like using a unique ID from the API, or a combo of stable properties that ensure uniqueness.

🚫 Avoid unnecessary re-renders
✅ Build more predictable UIs

Drop a 🔁 if you’ve done this before — and follow for more React best practices!

#react #frontend #nextjs

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