How to collect "some" items of a range in an array?

[Renato]

On Tuesday, 7 January 2025 at 07:55:21 UTC, Renato wrote:

> My difficulty would've been eased by more documentation and 
> examples (the official docs examples tend....


... the official docs examples tend to be too simplistic IMHO as 
they just print things instead of doing the stuff you normally 
want to do, like take a range, filter, map, collect results into 
a container for example.