Level 6
Null safety + error handling
Each markdown file opens as a slide deck: one slide per ## heading. Order follows the folder
README when it lists files.
In this level
Lesson modules
Filenames match the repo; slugs are what you see in the URL path.
- 1
6001null-safety-t-and-nullable
Slides6001null-safety-t-and-nullable
- 2
6002null-aware-operators
Slides6002null-aware-operators
- 3
6003exceptions-try-catch
Slides6003exceptions-try-catch
- 4
6004custom-exceptions
Slides6004custom-exceptions
- 5
6005structured-results
Slides6005structured-results
- 6
6006build-validator-library
Slides6006build-validator-library
- 7
6007build-safe-parsing
Slides6007build-safe-parsing
- 8
6008build-result-validation
Slides6008build-result-validation