What's Next?

What's Next

You have completed the F# course. You can now write idiomatic F# — defining functions, transforming collections with pipes, and modeling data with records and discriminated unions.

Go Deeper

• Option and Result types — F#'s Option<'T> and Result<'T, 'E> replace null and exceptions for safe error handling.
• Computation expressions — async { } and seq { } are built on a powerful abstraction for composing effects.
• Active patterns — extend match with custom decompositions of any type.
• Type providers — generate types at compile time from JSON, CSV, SQL, and more.
• Domain modeling — use DUs and records to make illegal states unrepresentable.

Resources

• F# Official Documentation — the official F# language reference.
• F# for Fun and Profit — comprehensive guide to functional programming in F#.
• Domain Modeling Made Functional by Scott Wlaschin — the definitive book on F# domain modeling.