Refactor throwing ArgumentNullException

[Seb-stian]

With .NET 6, this code

if (foo is null)
    throw new ArgumentNullException(nameof(foo));

can be replaced by

ArgumentNullException.ThrowIfNull(foo, nameof(foo));

which is to be prefered.

[Craftplacer]

Wasn't it possible before to Property = argument ?? throw new ArgumentNullException(nameof(argument));?

[Seb-stian]

Wasn't it possible before to Property = argument ?? throw new ArgumentNullException(nameof(argument));?

Yes it was, but when simply null-checking method arguments, you would have to do something like

_ = arg ?? throw new ArgumentNullException(nameof(arg));

[Craftplacer]

I guess that pattern stays constructor-exclusive for now.