Growing a Joyful Codebase from Legacy Code

on YouTube ↗37m

" summary

Explains concrete steps to convert messy iOS apps into testable modules: extract presenters from massive view controllers, replace global access by remove global singletons and inject dependencies, and write unit tests using protocol-based fakes like an API spy and a storage fake. Shows code-level refactors (delegate vs closure, composer vs inheritance), how to pick extraction candidates, and when to refactor incrementally so feature delivery keeps working while coverage and modularity improve.

AI-written summary · about

" chapters (10)

1. 0:00Introduction and speaker intro
2. 2:10What is legacy code
3. 5:39Growing vs starting from scratch
4. 8:05Massive view controllers
5. 17:20Extracting components
6. 17:42Problems with Singletons
7. 22:19The role of testing
8. 27:38Introducing good habits
9. 32:18Summary and key takeaways
10. 32:44Q&A session

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