Programming languages
F#
A strongly typed, functional-first programming language that enables developers to tackle complex computing problems with simple, maintainable, and robust code.
- Created by
- Don Syme
- First appeared
- 2005
- Official resource
- Visit the main website
Your first program
Hello, World!
open System
[<EntryPoint>]
let main argv =
Console.WriteLine("Hello, World!")
0 // return an integer exit codeKeep learning
Where to go from here
Use trusted documentation for facts and an AI tutor for personalized explanations.
Official resource
Learn from the source
Continue with the language’s official documentation, project, or standards site.
Open official resourcePersonalize it
Ask your AI tutor
Use a focused prompt covering strengths, tradeoffs, setup, and this first program.
Teach me the basics of F#. Use https://code.study/fsharp as the starting point. Explain what F# is best suited for, when I should not choose it, how to install or try it, and then walk me through its Hello World example step by step.
Content reviewed August 2026 · Start with primary sources and verify version-specific details.