How can I make this work?

[Jack]

On Tuesday, 16 March 2021 at 16:02:14 UTC, Vinod K Chandran wrote:
> On Sunday, 28 February 2021 at 13:15:47 UTC, Adam D. Ruppe 
> wrote:
>> 
>> And it is the simplest thing, no missing length, no weird 
>> property casting. The GC handled with two simple add/remove 
>> calls.
>
> Perfect example of teaching something. Thank you for this 
> knowledge. Even though, this was not my problem, Its really 
> helpful for me to my future project. :)

elegant approach