If you optimize everything, you will always be unhappy. - Donald Knuth

Any sufficiently advanced bug is indistinguishable from a feature. - Rick Kulaweic

Code Refactoring is the process of restructuring existing code without changing its external behaviour.
It allows to evolve the software in a controlled way but requires a good suite of tests as a foundation
(without it your trust level will drastically decrease).
It generally will extend slightly the development time in exchange for clean design, and enhanced software
maintainability.

Track: Advanced Beginner

Subject: Refactoring

Topics:

1. Articles
2. Code Smells
3. Refactoring Techniques