I Don’t Start Debugging Where the Error Appears One of the biggest lessons I've learned working a...I Don’t Start Debugging Where the Error Appears One of the biggest lessons I've learned working a...
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I Don’t Start Debugging Where the Error Appears
One of the biggest lessons I've learned working across the full stack is that the place an error appears isn't always where the problem started.
A React component might throw an error, but the actual issue could be:
React → API request → Node.js → business logic → SQL/PostgreSQL → response → React
If the data coming back is wrong, changing the component might only hide the symptom.
My approach is to reproduce the issue, check the console and network response, trace the request through the API, verify the database query and returned data, and then isolate the actual bottleneck.
Only after I understand where the failure is happening do I change the code.
That mindset has saved me from a lot of unnecessary rewrites.
Good debugging isn't about guessing faster. It's about eliminating possibilities faster.
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