dlang.org/Learn "hello_world".sort.chain ...

[Sergey]

On Tuesday, 26 December 2023 at 10:53:10 UTC, Tony wrote:
> I just typed in the program that is on the first page of Learn. 
> It has this line:
>
> sort(chain(arr1, arr2, arr3));
>
> I assigned that to a variable:
>
> arr4 = sort(chain(arr1, arr2, arr3));
>
> then printed it out
>
> writefln("%s",arr4);   // works
>
> and then tried to print out the type of arr4:
>
> writefln("%s",typeof(arr4));
>
> and got this error:
>
> // HelloWorld.d:25:19: error: cannot pass type 
> SortedRange!(Result, "a < b") as a function argument
>
> What exactly is that type? Or maybe, what would it take to 
> understand what that type is?

Use typeid, instead of typeof