Expert problem solving is a muscle. The more complex bugs you face, the better your internal pattern recognition becomes.
1Divide and Conquer
When a feature fails, bisect the code. Comment out half of it. Still broken? The bug is in the remaining half. This binary search approach is the fastest way to isolate issues in large codebases.
2The Documentation Trap
Don't just copy-paste from Stack Overflow. Mid-level developers read the official documentation to understand 'why' a solution works, ensuring they don't introduce security holes or technical debt.
3Defensive Programming
The best way to solve a problem is to prevent it. Using TypeScript, unit tests, and runtime validation (like Zod) creates a 'Safety Net' that catches errors before they ever reach the user.
