What's your favorite addition to C# in version 10?

I am a fan of global usings! Paired with implicit usings and scopped namespaces my files are so minimal and clean!

Constant interpolated strings 🙂

New pattern matching and lambda magic. I often create pipelines with DataFlow or Channels. To make such code read more like a script, eg `FromSource.Map(MappingFunction).Lookup(....).WriteToSql(...);` I created some extension methods too hide the boilerplate code for generating blocks/channels, connecting them to the pipeline and handling errors. I tried to use a railway-oriented programming style as much as possible. Unfortunately, I had to do quite a lot of explicit casting to `Func<...>` which made the extension methods a lot harder to write and use than I liked. The one feature I still miss is discriminated unions and the corresponding pattern matching. That would make railway-oriented Result handling a lot cleaner and easier

Global usings looks really good. It's nice to remove one level of nesting from your code.

I’m really enjoying the Extended property patterns—they open up new and creative ways to write C#. Loving every bit of it https://patrickraulin.de/ here!

C# 10 | Microsoft Community Hub

27 Replies

MKSLive
Copper Contributor
Dec 29, 2022
I would say, I like the Extended property patterns. It opens up new ways to write C..https://simulatorapkmod.com/ Anyway, I am loving it.
Harryhere
Copper Contributor
Oct 11, 2022
Exactly..! I am also using pattern matching in multiple languages I just love it.https://alightmotionapk.org/. Now i am doing it C# too... Its neat and great as always...
choo_king
Copper Contributor
Nov 12, 2021
I have already been using pattern matching in other languages and I love that I can now do it in C# too.
alex-chi
Copper Contributor
Nov 09, 2021
Extend method for static class instead of partial class
egvijayanand
Copper Contributor
Nov 08, 2021
Global usings, this is a game changer. Those already working on the Razor know the value of this feature.
Alsein
Copper Contributor
Nov 08, 2021
Preview Features in C#10 (Actually 11):
Static Abstract Interface Members
I believe it would lead to algebraic type system.
juansturla
Copper Contributor
Nov 05, 2021
I really like the Records and how they reduce the code. But sometimes I forgot that it exists
IhorDyrman
Copper Contributor
Nov 05, 2021
Global usings looks really good. It's nice to remove one level of nesting from your code.
- Heku
  Copper Contributor
  Nov 08, 2021
  yes, exactly.
arthuraugsten
Copper Contributor
Nov 05, 2021
Extended Property and Global Using are awesome!
ravelartemis
Copper Contributor
Nov 05, 2021
extended property is my favorite feature

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C# 10

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