What do you think about new C# 12 features?
What do you think about new C# 12 features?
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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13 comments
I'm a bit confused about the point of tuple type aliases. I don't see a good reason to ever use
using Point = (int x, int y);over
record struct Point(int x, int y);I guess if you're working with something that expects a tuple or value tuple, this saves you an explicit conversion from your record type to a tuple.
Also, it's still a tuple so you could simplify existing code without breaking any extension methods you have on them by making a separate type.
It looks like this was added for flexibility and to make the aliasing system more orthogonal to the type rather than to fill a particular need but who knows.
13 comments