Can you pass a and store a reference in primary constructor?

[Joebeazelman]

After learning about primary constructors, there's a question about whether they should be mutable or not. If mutable can they also be references?

[CyrusNajmabadi]

@Joebeazelman It's not very clear waht you're asking. Can you give an example?

primary constructors, there's a question about whether they should be mutable or not.

Constructors are not themselves mutable. They are just a way to create and initialize a value of a type. A code sample may clarify what you're asking. Thanks!

[HaloFour]

If the question is whether the primary constructor parameters can be reference types and if they can be mutated, the answer is yes, on both counts:

public class C(List<string> strings) {
    public void Add(string value) => strings.Add(value);
    public void Reset() => strings = new List<string>();
}