Davide Bellone | www.code4it.dev

Readonly vs Immutable vs Frozen in C#: differences and (a lot of) benchmarks The words ReadOnly, Immutable, Frozen seem similar but have distinct meanings in .NET. Here’s a detailed comparison of Readonly, Immutable, and Frozen collections in C#, with benchmarks and typical us...

A new article!

Readonly vs Immutable vs Frozen in C#: meanings + benchmarks.

1️⃣ Readonly = view, can still change
2️⃣ Immutable = snapshot, new instance on update
3️⃣ Frozen = build once, fastest lookups

Read & comment! 🔥 #dotnet #csharp #performance
www.code4it.dev/blog/readonl...

Board of Peace

`DiagnosticSuppressor` shines, when we want a dynamic behavior for enabling/disabling a `DiagnosticAnalyzer`. Here I am covering them and of course with tests 😉

👉🏼 bit.ly/4p8d99a or scan the QR code!

#Roslyn #DiagnosticAnalyzer #DiagnosticSuppressor #SourceGenerator #csharp #dotnet

Love this #copilot suggestion: all items are lowercase, but they should be lowercase!!
😀😀

Introducing the Testing Vial: a (better?) alternative to Testing Diamond and Testing Pyramid The Testing Pyramid focuses on Unit Tests; the Testing Diamond focuses on Integration Tests; and what about the Testing Vial?

www.code4it.dev/blog/testing...

The Testing Pyramid emphasises Unit Tests.
The Testing Diamond emphasises Integration Tests.

But I really think we should not focus on technical aspects.

That's why I came up with the Testing Vial.

Let me know what you think of it!

Good to know that .NET STS releases will now be supported for 24 months instead of 18 months.

The end of support will coincide with the release of the next STS, as a soft push to companies to upgrade to the newer versions.

I left Twitter because of all those fake accounts, and now... they're here >sigh<

Hexagons

a picture of a man 's face with the word alva on the bottom right ALT: a picture of a man 's face with the word alva on the bottom right

I just realised that my city, Turin, is famous for two opposite things:

- Juventus Football Club
- the Shroud

Ready to make your C# tests rock-solid? 🎸 Discover how TimeProvider & FakeTimeProvider help you inject and test current time easily!

1️⃣ Simplify date handling in tests
2️⃣ Boost reliability with FakeTimeProvider
3️⃣ No more custom wrappers!

Read & comment!👇
#dotnet #csharp #testing

C# Tip: injecting and testing the current time with TimeProvider and FakeTimeProvider Dates used to be difficult to test. But with TimeProvider and FakeTimeProvider, everything becomes possible!

Here's the link:
www.code4it.dev/csharptips/t...

Ready to make your C# tests rock-solid? 🎸 Discover how TimeProvider & FakeTimeProvider help you inject and test current time easily!

1️⃣ Simplify date handling in tests
2️⃣ Boost reliability with FakeTimeProvider
3️⃣ No more custom wrappers!

Read & comment!👇
#dotnet #csharp #testing

a taco with arms and legs is dancing on a white background ALT: a taco with arms and legs is dancing on a white background

As expected

Build your own Static Code Analysis tool in .NET by knowing how Assembly, Type, MethodInfo, ParameterInfo work. Why buy a whole tool when you can build your own? Learn how the Type system works in .NET, and create your own minimal type analyser.

Here's the link!

www.code4it.dev/blog/assembl...

🔍 Want to build your own static code analysis tool in .NET? Discover how Assembly, Type, MethodInfo & ParameterInfo work!

1️⃣ Learn to inspect assemblies & types
2️⃣ Master method & parameter analysis
3️⃣ Build custom analyzers—no big tools needed!

Read & comment!
#dotnet #CSharp #CodeAnalysis #DevTips

C# Tip: Handling exceptions with Task.WaitAll and Task.WhenAll Task.WhenAll and Task.WaitAll are common methods in C# that allow you to execute multiple Tasks. But… what happens when an exception is thrown?

C# Tip: Handling exceptions with Task.WaitAll and Task.WhenAll

www.code4it.dev/csharptips/t...

🚀 Curious about error handling in C# async?

My latest article breaks down Task.WhenAll vs Task.WaitAll!

1️⃣ Real code examples & outputs
2️⃣ Key differences in exception handling
3️⃣ Practical tips for modern C# devs

Read & comment your thoughts!
#dotnet #csharp #async #programming

link in comments

How to run SonarQube analysis locally with Docker by @bellonedavide.bsky.social www.code4it.dev/blog/sonarqu... #aspnetcore

How to run SonarQube analysis locally with Docker The quality of a project can be measured by having a look at how the code is written. SonarQube can help you by running static code analysis and letting you spot the pain points. Let’s learn how to in...

www.code4it.dev/blog/sonarqu...

🚀 Wanna boost your code quality with SonarQube + Docker! Learn how to set it up locally and run your first analysis. 🛠️

1️⃣ Easy Docker setup for SonarQube
2️⃣ Step-by-step guide for ASP.NET projects
3️⃣ Navigate insightful reports 🧑‍💻

👉 Link in comments!
#CodeQuality #SonarQube #Docker #DotNET

In a dystopic future, I can see Tesla taxis giving you a different quality of service depending on what you've posted on Twitter.

Visual Studio Intellisense is weird:

Who is Joseph Maloney? Why does his name appear in my code??

Never happened before: I celebrated the successful downgrade of the application I'm working on 😂😂

D2: like Mermaid, but better. Syntax, installation, and practical usage tips D2 is an open-source tool to design architectural layouts using a declarative syntax. It’s a textual format, which can also be stored under source control. Let’s see how it works, how you can install it, and some practical usage tips.

You can read the article here:

www.code4it.dev/architecture...

🐧 D2 Diagrams: An Alternative to Mermaid🐧

Tired of #Mermaid?
My latest article dives into the world of #D2 diagrams and shows you how to create your own!

Everything's defined as a text, but with more elements and ways to describe the #architecture

(link in the first comment)

a cartoon of peter griffin talking to a butcher in a butcher shop ALT: a cartoon of peter griffin talking to a butcher in a butcher shop

Just a kind reminder:
In Italy, we don’t have a clue of what Fettuccine Alfredo are.

Same for spaghetti with meatballs.

Never eat them, and you will not find them in any house or restaurant

🇮🇹🇮🇹🍝🍝

Ok, I'm officially an Open Source contributor 😂

C# Tip: How to create Custom Attributes, and why they are useful Applying custom attributes to C# classes and interfaces can be useful for several reasons. Let’s learn how to create Custom Attributes in C#, and let’s explore some practical usage!

Read the article here:

www.code4it.dev/csharptips/c...

🐧 Unlock the Power of Custom C# Attributes! 🐧

Wanna make your #CSharp code more expressive and powerful?
My latest article dives into the world of custom C# attributes and shows you how to create your own!

1️⃣ Enhance Code Readability
2️⃣ Add Metadata
3️⃣ Enhance searchability
👇