Skip to content
Happy Programming Guide
Start learning

C#

C# fundamentals in plain English — types, collections, LINQ and the language features that make everyday code shorter.

7 guides

C#

C# Deployment

How to publish a .NET application: framework-dependent versus self-contained builds, single-file output, trimming, Docker and configuration for production.

4 min read

C#

C# Basics

The core of C# in one page: types, variables, conditions, loops, methods, collections and classes, with the compiler errors beginners meet.

5 min read

C#

What’s New in C# 14 and .NET 10

.NET 10 is the current long-term release and C# 14 comes with it: extension members, the field keyword, file-based apps and more.…

4 min read

C#

C# Advanced Language Features

LINQ, generics, async/await, pattern matching, records and extension methods — the C# features that make everyday code shorter, explained one at a…

4 min read

Related topics

Where to go next

Programming Basics The ideas every language shares — variables, loops, functions and how a program actually runs. 16 guides Python Plain-English Python guides, from your first line of code to small programs that do real work. 58 guides JavaScript How JavaScript works in the browser, explained with short examples you can paste and run. 24 guides

Keep going — pick your next guide

The fastest way to improve is to read one guide, then build the thing it describes. Start with the basics, or jump straight to a project.

Start with the basics See beginner projects