Nullable with generic types behaving weird

[Cyl18]

if I add a '?' to the TValue

so how can I improve this method?

[333fred]

That latter code will be valid in C# 9.

[IS4Code]

You mean TValue? will be valid without constraints on the parameter? How is it going to be implemented?

[CyrusNajmabadi]

Unconstrained TValue? just means "calling this may result in getting default(TValue) back"

[333fred]

You mean TValue? will be valid without constraints on the parameter? How is it going to be implemented?

And, to be sure, it's already implemented and has been for a few months. You can go check it out right now.

[Joe4evr]

Out of curiosity, is there any reason you're not using TryGetValue? Because right now you're doing a double-lookup, which could hurt your perf quite a bit.

[Cyl18]

thank you! I didn't know that