SharpLab
proposal-explicit-resource-management
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SharpLab | proposal-explicit-resource-management | |
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106 | 22 | |
2,554 | 703 | |
- | 5.0% | |
7.8 | 6.5 | |
4 months ago | 19 days ago | |
C# | JavaScript | |
BSD 2-clause "Simplified" License | BSD 3-clause "New" or "Revised" License |
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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'
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.
- Running a XUnit test with C#?
proposal-explicit-resource-management
- Cooperation between Cloudflare Workers has become amazing thanks to RPC support
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Proposal: Signals as a Built-In Primitive of JavaScript
The standard doesn't have anything to do with TypeScript, not sure where you got that from? https://github.com/tc39/proposal-explicit-resource-managemen...
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How does TypeScript's explicit resource management work?
The explicit resource management proposal tries to make it a bit easier for us, by allowing the resource to declare how it should be managed, rather than expecting us to clean everything up when we use the resource. We get a new keyword using to define a variable (rather than const or let), which tells the runtime to clean up the resource at the end of the function.
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Using using in TypeScript for resource management
Enter the explicit resource management proposal, which describes — among many other things — a new using operator that was introduced in TypeScript 5.2 and is making its way into JavaScript. From the top of the README file, here’s what this proposal aims to do:
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OpenTelemetry in 2023
In addition to this, is the new (stage 3 even!)explicit resource management proposal[0], supported by TypeScript version >= 5.2[1]
Though I agree that async context is better fit for this generally, the RMP should be good for telemetry around objects that have defined lifetime semantics, which is a step in the right direction you can use today
[0]: https://github.com/tc39/proposal-explicit-resource-managemen...
[1]: https://www.totaltypescript.com/typescript-5-2-new-keyword-u...
- ECMAScript Explicit Resource Management Proposal
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Why is JavaScript so hated?
It's too early for that, https://github.com/tc39/proposal-explicit-resource-management
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TypeScript 5.2's New Keyword: 'using'
[3]: https://github.com/tc39/proposal-explicit-resource-managemen...
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Douglas Crockford: “We should stop using JavaScript”
I'm not _entirely_ sure which RAII you mean, but if you mean something like C#'s `using` or Java's `try-with-resources` or Python's `with`, then https://github.com/tc39/proposal-explicit-resource-managemen... and https://github.com/tc39/proposal-async-explicit-resource-man... are in stage 3 (of 4 stages) in ECMAScript's language proposal lifecycle and will be coming to a JS engine near you behind a flag soon-ish.
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.
librope - UTF-8 rope library for C
Roslyn - The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
caniuse - Raw browser/feature support data from caniuse.com
.NET Runtime - .NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
pidove
BenchmarkDotNet - Powerful .NET library for benchmarking
proposal-class-method-parameter-decorators - Decorators for ECMAScript class method and constructor parameters
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.
search-benchmark-game - Search engine benchmark (Tantivy, Lucene, PISA, ...)
csharplang - The official repo for the design of the C# programming language
proposal-iterator-helpers - Methods for working with iterators in ECMAScript