F# documentation

Learn how to write any application using the F# programming language on .NET.

Learn to program in F#

Get started

• What is F#?
• F# strategy
• First steps in F#
• Install F#
• Get started with F# in Visual Studio
• Get started with F# in Visual Studio Code
• Further learning

video

• Beginning F# video series

Download

• Download the .NET SDK

F# language guide

Overview

• F# language guide

Reference

• F# language specification
• F# RFCs
• F# library reference
• .NET library reference

F# fundamentals

Overview

• Overview
• Tour of F#
• Values

Concept

• Types and inference
• Functional concepts
• Type providers

Tutorial

• Using Functions
• Pattern matching
• Object programming
• Async programming

F# in practice

Overview

• F# for web development
• F# for machine learning
• F# for deploying Azure resources

Training

• F# style guide
• F# code formatting guidelines
• F# coding conventions

F# tools

Overview

• F# Interactive
• F# development tools
• F# notebooks
• F# for JavaScript

New features in F#

What's new

• What's new in F# 9
• What's new in F# 8
• What's new in F# 7
• What's new in F# 6
• What's new in F# 5
• What's new in F# 4.7

Tutorial

• Explore tasks
• Explore interpolated strings
• Explore anonymous records