TypeScript as a design tool, not a safety net
The common way to adopt TypeScript is to write the code, then annotate it until the compiler stops complaining. That gets you autocomplete. It does not get you a better product.
The alternative is to model the states first. A screen that can be loading, empty, populated or errored is a union, not four booleans. Encoding that up front makes impossible states unrepresentable and removes the defensive branches that usually rot.
This pays off most at team boundaries. When frontend and backend share generated types, an entire class of integration bugs disappears from code review and never reaches QA.
- TypeScript
- React 19
- Domain Modeling
- Clean Code