SharpLab
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SharpLab | referencesource | |
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106 | 88 | |
2,539 | 3,097 | |
- | 0.5% | |
7.8 | 0.0 | |
3 months ago | 15 days ago | |
C# | C# | |
BSD 2-clause "Simplified" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
SharpLab
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Is .NET just miles ahead or am I delusional?
Do these all compile to the exact same thing?
https://sharplab.io/#v2:CYLg1APgAgTAjAWAFBQMwAJboMLoN7LpHoCW...
Yes, so you are right.
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Generating C# code programmatically
Recently, while creating some experimental C# source code generators (xafero/csharp-generators), I was just concatenating strings together. Like you do, you know, if things have to go very quickly. If you have a simple use case, use a formatted multi-line string or some template library like scriban. But I searched for a way to generate more and more complicated logic easily - like for example, adding raw SQL handler methods to my pre-generated DBSet-like classes for my ADO.NET experiment. You could now say: Use Roslyn and that's really fine if you look everything up in a website like SharpLab, which shows immediately the syntax tree of our C# code.
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The One Billion Row Challenge – .NET Edition
One results in MOVSX, the other in MOVZX [1]. The difference thus is sign/zero extension when moving to the larger register. However, they seem to perform pretty much identical if I'm reading Agner Fog's instruction tables correctly.
[1] https://sharplab.io/#v2:C4LghgzgtgPgAgJgIwFgBQcDMACR2DC2A3ut...
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Any programs or websites to practice programming?
If you don't have an IDE, you can use SharpLab.io or dotnet fiddle
- Por debaixo do capô: async/await e as mágicas do compilador csharp
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C# Testing Playgrounds for old versions?
The closest online tool I can think of would be SharpLab, but you can only choose between Roslyn's git branches instead of C# versions.
- The combined power of F# and C#
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TypeScript 5.2's New Keyword: 'using'
> C# doesn't allow you to destructure a single property and as far as I can tell
https://sharplab.io/#v2:C4LgTgrgdgNAJiA1AHwAICYAMBYAUBgRj2Nw...
Your code is destructuring two properties and discarding one of them. It doesn't work with a single property: https://sharplab.io/#v2:C4LgTgrgdgNAJiA1AHwAICYAMBYAUBgRj2Nw...
I think that records don't generate a deconstruct method when they only have one property, but even if you manually define one you'll get an error on `var (varName) = ...`
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Tips for entry-level .net developer?
- LinqPad is great and I love, but, IMO, it is not the best tool to start with. It does not provide intellisense or debugger in the free version. Assuming you do not want to pay for this licence just to play a little with the language, I'd suggest https://sharplab.io/. It is not as powerfull as LinqPad, but at least it gives you suggestions.
referencesource
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Why your F# evangelism isn't working
Just like every language is able to be slow/non-performant -- but OO in this case would be Python in a web context; it doesn't invalidate that a good amount of OO codebases in the wild devolve into incomprehensible black boxes, where no one has any idea what anything does or how to make meaningful changes that fulfill the intent of (compare that to iterative programming, where you can atleast read it)
A list: I give you a vector. Plain and simple. Not this insanity: https://referencesource.microsoft.com/#mscorlib/system/colle... You do not need OO to create a vector (or even an array -- god forbid!)
As for trees: roll your own. They're simple enough, yet tightly-coupled with context that no generic implementation exists that is flexible enough. You do not need OO to create a tree. C has been working with trees long before the current Frankensteination of OO was even a twinkle in Gosling's eye.[0]
Data structures do not need inheritance -- they might need delegation (message passing that requires you to actually think about your system).
Data structures do not need encapsulation -- they most likely need namespaces. Realistically, most classes will be used as namespaces.
Data structures do not need polymorphism -- just implement the methods you need, and name them appropriately (no 5+ word phrases, please. Please!)
What modern OO does is lower the barrier to productivity in the present, and then pays for it in the future. It's no different than writing your "planet scale" backend system in JS.
[0] If you want to know why we have Java: some guys that didn't have the time to think about low-level (memory management specifically) things for their embedded applications, got sick of trying to learn C++, decided to make their own language. That's it. There was no grand plan or thoughtful design -- it's just a mismash of personal preference.
List is an IList/IReadOnlyList; these interfaces do nothing that couldn't be done right inside the file itself.
https://referencesource.microsoft.com/#mscorlib/system/colle...
https://referencesource.microsoft.com/#mscorlib/system/colle...
Instead we have to go diving through the IList, which implements ICollection, which implements IEnumerable, which implements IEnumerable (again). Just because each interface is composed of another interface, doesn't mean you aren't using inheritance. You are effectively creating a custom inheritance tree through willy-nilly composition.
It is gratuitous to make this chain so deep, when the underlying code is just a handful of lines.
https://referencesource.microsoft.com/#mscorlib/system/colle...
https://referencesource.microsoft.com/#mscorlib/system/colle...
https://referencesource.microsoft.com/#mscorlib/system/colle...
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The doc-strings are unnecessary. It's self-evident what most of the code does if you read it.
// Returns an enumerator for this list with the given
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Multi-Key Dictionary in C#
.net itself has arbitrary interfaces, ex https://github.com/microsoft/referencesource/blob/master/mscorlib/system/action.cs
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Bring WCF apps to the latest .NET with CoreWCF and Upgrade Assistant
Not enough people care. And you can compile the APIs yourself from the .NET Framework reference source if you really want it. System.Messaging was added to the .NET Framework reference source in this PR.
- Ask HN: Examples of Top C# Code?
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What do you think is more readable when using LINQ: Query Expressions or Method Expressions?
Now go review the code at https://github.com/microsoft/referencesource/blob/master/System.Xml.Linq/System/Xml/Linq and find where those parts are in LINQ to XML.
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How to Validate an Email Address in C#
Let’s look at another example. The following is a regex used by Microsoft in their EmailAddressAttribute class:
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We doing this?
If I trained an AI to make a Java VM by getting it to learn from Microsoft's Reference Source licensed .NET framework. Would I be allowed to make a profit or distribute my Java VM?
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Why do Task.Wait and Task.Result even exist?
And the actual implementation: https://github.com/microsoft/referencesource/blob/master/mscorlib/system/threading/Tasks/ThreadPoolTaskScheduler.cs
What are some alternatives?
JITWatch - Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
Roslyn - The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
.NET Runtime - .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
BenchmarkDotNet - Powerful .NET library for benchmarking
interactive - .NET Interactive combines the power of .NET with many other languages to create notebooks, REPLs, and embedded coding experiences. Share code, explore data, write, and learn across your apps in ways you couldn't before.
csharplang - The official repo for the design of the C# programming language
ASP.NET Core - ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.
FStar - A Proof-oriented Programming Language
JDBI - The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.
AWS SDK - The official AWS SDK for .NET. For more information on the AWS SDK for .NET, see our web site: