Renaming a field shouldn't break your app after deployment. I built a tiny validatePath() helper that ensures string-based property access is compile-time safe — even for nested keys.
✅ Zero runtime cost
✅ Works with any object shape
✅ IDE autocomplete for deep paths
🧠 Learn how template literal types and type recursion can save you hours of debugging:
👉 Read on Medium
https://javascript.plainenglish.io/safe-string-keys-in-2025-my-battle-tested-trick-35a0c9b37902
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