Software Design
Principles, design patterns and low-level design: model real problems as clean objects, from a parking lot to a chess game.
By the end you can
- Apply the SOLID principles to real code
- Choose and use creational, structural and behavioural patterns
- Shape a codebase with clean, hexagonal and domain-driven ideas
- Model a parking lot, an elevator or a booking system as clean objects
- Break down a new low-level design problem with a method, not a guess
Start: How to learn design patterns6 steps · about 8 hours of lessons and videos
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Clean Code DesignerMaster every stepLearn · 0/2
- How to learn design patterns
9 min · 3-question quiz
- The SOLID principles
12 min · 3-question quiz
Watch · 0/3
Stop Recommending Clean CodeThe PrimeTime · 27 min
Clean Code : Horrible Performance | Full InterviewThe PrimeTime · 47 min

Read · 0/1
- Design Patterns Catalogue
Refactoring Guru
0% done. At 80% this step counts as mastered.
Master all 6 steps to earn the Clean Code Designer badge and a grade. A step counts as mastered when you have done 80% of it. Lessons you finish, labs you pass and videos you watch on the site tick themselves.