Your question is Debugging a TypeScript App. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about a time you debugged a TypeScript-based application in production, including how you isolated the root cause and verified the fix.
Explain the observable symptoms, your investigation sequence, the tools or signals you used, and how you distinguished the root cause from contributing factors. Cover how you assessed impact, avoided unsafe changes, validated the fix, and monitored the application afterward. Use a real example and be specific about your decisions and evidence.