Discriminated Unions

Discriminated unions are a powerful data structure to use when modelling a domain in an application.

The name of this data type varies between programming languages, for instance:

• F# calls it Discriminated unions
  


• OCaml calls it Variants
  


• TypeScript calls it Tagged Union Types some times, and other times discriminated unions


• Haskell calls it Algebraic data types
  

Pattern matching and discriminated unions are great together and makes it really easy to express complex models in the code.

Here is a simple …

100daystooffload application data datastructures domain instance languages modelling ocaml programming programming languages type types typescript union unions variants