this post was submitted on 21 Jun 2023
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What do you think about new C# 12 features? (programming.dev)
submitted 1 year ago by [email protected] to c/[email protected]
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New features for those who haven't seen them:

// Primary constructors
public class NamedItem(string name)
{
    public string Name => name;
}

// Default lambda params
var IncrementBy = 
    (int source, int increment = 1) => 
        source + increment;

Console.WriteLine(IncrementBy(5)); // 6
Console.WriteLine(IncrementBy(5, 2)); // 7

// Type aliases
using Point = (int x, int y);
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[–] [email protected] 2 points 1 year ago (1 children)

Any codebase of any complexity will invariably have its own way of doing things. As long as the dialects are mutually intelligible and using one doesn't make it harder for consuming code to use another, it's usually not a problem. I don't think these features are likely to cause these problems.

[–] [email protected] 2 points 1 year ago (1 children)

A codebase is different than the language itself enabling many ways to do the thing.

You may not think it's likely to cause problems, but have you actually onboarded non c# devs onto new C# projects?

I have been for the last 6 months and let me tell you it really opened my eyes to new problems. One of those is that there are many ways to do the same thing, which has been a consistent pain point for non-c# devs, and has been hurting adoption and general sentiment.

Honestly I didn't think much of it till now, and didn't think it would be that big of a deal. Turns out it is.

[–] [email protected] 0 points 1 year ago

Onboarding them onto... what? Out of the billions of possible standards and practices to adopt, you are either showing them which to use, or letting them pick. There is usually not a single right way to do something. This isn't exclusive to C#. Language features are only a tiny subset of the functionality a programming language is used to build.