Model the product in types, then ship with fewer surprises.
Rated 4.8 (5)
TypeScript is not a style choice. It is how product teams keep moving once the codebase is no longer small.
This course is the path Amelia uses with working engineers: types that model the product, not the framework, and refactors you can ship on a Thursday.
2 sections · 5 lessons
1. Foundations
The cost of a codebase that only the author understands.
1.2 Modeling the domain
Start from the product, not the framework types.
1.3 Errors as data
Make failure a value the UI can render.
2. In production
2.1 API contracts
Share types across the boundary without lying.
Rated 4.8 (5)
Kenji Mori
Aug 28, 2026
Rated 5.0
Shipped a Thursday refactor with the patterns from week two.
Hannah Cole
Aug 26, 2026
Rated 4.0
Wanted one more exercise on errors. Still the best TS course I have taken.
Mateo Ruiz
Aug 24, 2026
2.2 Refactors you can ship
Change the model in a day, not a quarter.
Rated 5.0
I finally have language for API contracts that is not hand-waving.
Sofia Lindgren
Aug 22, 2026
Rated 5.0
Clear, adult, and short enough to finish.
Noah Patel
Aug 20, 2026
Rated 5.0
The domain-modeling week paid for itself on a real refactor.