Database

Identify and fix common code smells that indicate deeper design problems

Manage dependencies and reduce coupling to build modular, flexible systems

Implement clean error handling strategies that keep code readable and robust

Design small, focused functions that do one thing well and are easy to test

Choose clear, intention-revealing names for variables, functions, classes, and modules

Apply common refactoring patterns to improve code structure without changing behavior

Apply SOLID principles to design flexible, maintainable object-oriented code

Design effective tests using the testing pyramid, clean test structure, and test-driven thinking