How to force evaluation of range?

[Xinok via Digitalmars-d-learn]

On Friday, 12 February 2016 at 20:43:24 UTC, Taylor Hillegeist 
wrote:
> So I have this code and I have to add the element
> .each!(a => a.each!("a"));
> to the end in order for it to evaluate the range completely and 
> act like I expect it too. Is there a  better thing to put in 
> the place of
> .each!(a => a.each!("a"));?
>
> ...

The following combination might work:

.joiner.each;

http://dlang.org/phobos/std_algorithm_iteration.html#.joiner

http://dlang.org/phobos/std_algorithm_iteration.html#.each