Languages / Knowledge library
F#
typed functional programming in the dotnet ecosystem
Why learn F#?
Useful for typed business logic and data transformations in .NET applications. Type safety complements rather than replaces runtime validation of external input.
Where it came from
F# combines functional-first programming with static typing and interoperability with .NET. Discriminated unions, pattern matching, and immutable values support expressive domain models.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Define a record and discriminated union.
- Transform a collection through a function pipeline.
- Handle every union case with pattern matching.
- Call an existing .NET library.
- Test both success and error paths of a typed domain operation.
Documentation and sources
- Official project documentation (fsharp.org)
Catalog research notes
- Research snapshot: September 9, 2026. This entry summarizes the linked primary documentation; it does not assert a latest release version.