Learn how to write better C# code in 15 minutes | DEM515

C# continues to evolve to meet the needs of developers. This talk explores how key features introduced in the last few versions of C# work together to make your code simpler and faster. As just one example, collection expressions let you write simple code that is also fast, and params collections let you use them in more places. Seeing these and other recent C# features working together will equip you with the latest tools to streamline your coding experience.

To learn more, please check out these resources:
https://aka.ms/build25/plan/LearnCSharp


𝗦𝗽𝗲𝗮𝗸𝗲𝗿𝘀:
Mads Torgersen
Jared Parsons


𝗦𝗲𝘀𝘀𝗶𝗼𝗻 𝗜𝗻𝗳𝗼𝗿𝗺𝗮𝘁𝗶𝗼𝗻:
This is one of many sessions from the Microsoft Build 2025 event. View even more sessions on-demand and learn about Microsoft Build at https://build.microsoft.com

DEM515 | English (US) | Developer Tools & .NET


#MSBuild

Chapters:
0:00 - C# Features Highlight: Pattern Matching, Records, and Collection Expressions
00:04:21 - Introduction to Using Patterns in Expressions
00:04:37 - Transition from 'is' Expressions to 'switch' Statements
00:06:36 - Compiler Optimizations with Patterns in Switch Statements
00:07:53 - Making Code Safer with Feedback
00:10:54 - Value Representation with Records
00:12:05 - Enhanced toString Functionality
00:13:24 - Detailed Explanation on Records and Parameters
00:14:49 - Collection Types and Their Handling