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Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
@okyrylchuk
Sep 26, 2021 β€’ 15 tweets β€’ 4 min read β€’ Read on X
All my tweets about C# 10 features in one thread. 🧡

Retweets are appreciated 😊

#dotnet #csharp #coding #devcommunity
Constant interpolated strings
Extended property patterns
File scoped namespaces
Global usings
Assignment and declaration in the same deconstruction
Sealed when overriding ToString
Record struct and class declarations
Struct vs Record struct
Parameterless struct constructors
Lambdas with attributes
Explicit return type in lambdas
AsyncMethodBuilder attribute applying to the method
Expression 'with' in structs
Expression 'with' in anonymous types

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Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture

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More from @okyrylchuk

Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Dec 26, 2021
This year I've met on Twitter a lot of amazing folks πŸ™‚

Thank you for interacting with me to all in the circles and beyond 😊
Circle 1
@BelloneDavide
@ppenza
@badamczewski01
@MarusykRoman
@gsferreira
@dustinmoris
@foo_fighter
@KatyCodesStuff
Circle 2
@ErikEJ
@cezary_piatek
@GozukaraFurkan
@Franc0Fernand0
@SajuShajil
@phorsight2020
@GriyoPikliz
@WalenciukC
@rahulpnath
@carlcod_es
@hypeartistmusic
@SabitK
@tckscz
@druzgala_marcin
@BuildItBusk
Read 5 tweets
Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Dec 25, 2021
EF Core 6.0 new features. 48 code samples.

The biggest thread of mine so far. With sub-threads. The last this year.

It took me almost two months to go through many new features in EF Core 6.

Retweets are appreciated 😊

#dotnet6 #efcore6 #coding #devcommunity
A new Unicode attribute
A new Precision attribute
Read 30 tweets
Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Dec 23, 2021
LINQ query enhancements in EF Core 6.0 thread.

12 features with code samples.

Retweets are appreciated 😊

#dotnet6 #efcore6 #coding #devcommunity
Better support for GroupBy queries
String.Concat translation with 3 and 4 arguments
Read 14 tweets
Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Nov 2, 2021
A big thread of new APIs in the .NET 6. 🧡

Retweets are appreciated ☺️

#dotnet6 #coding #devcommunity #programming
Reflection API for nullability information.
Reflection API for nested nullability information.
Read 20 tweets
Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Oct 5, 2021
A thread about LINQ improvements in .NET 6 🧡

As always, retweets are appreciated 😌

#dotnet6 #linq #coding #devcommunity
Override default value in '*OrDefault' methods.
New 'MinBy', 'MaxBy', 'DistinctBy', 'ExceptBy', 'IntersectBy', 'UnionBy' methods.
Read 8 tweets
Oleg Kyrylchuk βœ™ πŸ‡ΊπŸ‡¦ Profile picture
Sep 6, 2021
Self-contained apps are cool in #dotnet. You can bundle runtime and framework with the app. The downside is the size.

To resolve the size problem you can use app trimming.

.NET 5 introduces multiple options to trim the app.

1/4 🧡

#coding #devcommunity
The assembly-level trimming leaves only used assemblies in the app.

TrimMode=CopyUsed is default when using PublishTrimmed=true.

Result: 10.8 MB.

2/4
The member-level trimming is more aggressive. It removes types and members that are not used.

⚠️ It's an experimental feature. It's not ready for mainstream use.

Result: 2.58 MB.

3/4
Read 4 tweets

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