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Learn G#

Start small. Build understanding.

Find the right way into G#: a first program, a guided tour, or a bridge from the language you already know.

Documentation for G# 0.4.591. Looking for Next?

Your first steps

01
Install G#
Set up the published tools and create a project with the .NET SDK.
02
Hello, G#
Run a complete program, understand each line, and make it your own.
03
Build Trail
Put data classes, nullable values, channels, and .NET libraries into one useful application.
04
Inspect and debug
Explore the running project and inspect values in your editor.

Bring your experience

For C# developers

Familiar libraries, different conventions. Compare the concepts side by side.

For Go developers

Get oriented to .NET, nullable types, and the CLR exception model.

For Kotlin developers

Familiar data and nullable concepts, a new runtime. Learn where the similarities stop.

For Swift developers

Connect optionals and value types to .NET, and understand lifetime and concurrency differences.

What is G#?

Understand the language, its goals, and where it fits.

Put it into practice

A Tour of G#

Explore the language one concept at a time, alongside your project.

Ten Go/G# concurrency patterns

Read runnable pairs, compare correctness and usability, and inspect separately sourced workflow measurements.

Write idiomatic G#

Learn the conventions that make code clear and predictable.

Projects and packages

Organize source files, reference libraries, and build with MSBuild.