Modeling State with TypeScript
▻https://www.azavea.com/blog/2019/12/12/modeling-state-with-typescript
Managing state on the frontend can often be tricky. Beyond perennial issues around keeping the view and model in sync (which modern frameworks can help with greatly) our model can simply have the wrong state in it. However, using TypeScript, we can define our types in such a way as to make those bad states unrepresentable. Let’s look at an example.
State transitions modeled as conditional types — it looks like a really cool idea.