How to loop through characters of a string in D language?

[forkit]

On Wednesday, 8 December 2021 at 22:35:35 UTC, Stanislav Blinov 
wrote:
>
> You're passing a literal. Try passing a runtime value (e.g. a 
> command line argument). Also, -O2 -release :) Uless, of course, 
> your goal is to look at debug code.

but this will change nothing.

the compilation cost of using .replace, will always be apparent 
(compared to the presented alternative), both in less time taken 
to compile, and smaller size of executable.