Simplest way to create an array from an associative array which its contains keys and values?

[Andrej Mitrovic]

On Friday, 3 January 2014 at 17:38:16 UTC, Gary Willoughby wrote:
> I know it can be done via a loop, but is there a more idiomatic 
> way to achieve this?

----
import std.algorithm;
import std.range;
import std.stdio;

void main()
{
     auto aa = ["one":"1", "two":"2"];
     auto range = aa.byKey.map!(a => chain(a.only, aa[a].only));
     string[] array = range.join;
     writeln(array);
}
----

However I'm not sure whether "only" is present in 2.064, maybe it 
was added recently in the git-head version.