Take on new challenges to improve your engineering skills. Use these fun and easy exercises to help you become better at coding.

Learn to write clean code
13+ Code Smell and Reengineering techniques to help you learn more about reengineering your code in the real world
Built in VS Code IDE to help you write code on the web
Don’t like our answer for the exercise. Get better answers through AI.

Why Clean Code ?
Do you waste most your time trying to fix bugs caused by poorly written and unmaintainable code.
Improved code quality and maintainability resulting in reduced bugs and technical debt
Build in VS Code IDE to help you write code on the web
Enhanced collaboration with team members through clean and readable code
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Two types of questions
Why should I pay for this when I can learn Refactoring online?
The ReengineerNow approach is different from what you’ll find in other online courses. Instead of spending hours in lectures, you’ll encounter problematic code along with a concise explanation of the tasks that need to be addressed. Using your existing skills and helpful links to relevant documentation and resources, you’ll have as much time as you need to complete the challenge in our embedded VS Code editor on the website.
What will I learn?
You’ll discover how to spot code smells, break down complex code into simpler and more maintainable structures, and grasp the effects that reengineering can have on software design.