Functional Domain Modeling in TypeScript

You may be missing out on what your type system can do for you. And I don’t mean learning TS shenanigans!

I will show you how you can use types to represent your domain in a fine-grained, self-documenting way. We will make impossible states unrepresentable. We will encode business rules without writing a single line of runtime code!

With real-world examples, let’s dig into a more functional approach to modeling your app—without any monad!