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TypeError: Cannot read properties of undefined on line 42. Can you fix it and explain why?user.address can be undefined when the user hasn't set up their profile yet. Here's the fix:// Before (throws if address is undefined) const city = user.address.city; // After (safe optional chaining) const city = user?.address?.city ?? "Unknown";I also notice on line 58 you're doing the same pattern with
user.preferences.theme — want me to fix that too while we're here?DevChatAI understands your full codebase context — not just the file you have open. It knows your patterns, your stack, and your style.
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