array to string functional?

[berni]

On Saturday, 15 September 2018 at 03:25:38 UTC, Paul Backus wrote:
> On Friday, 14 September 2018 at 20:43:45 UTC, SrMordred wrote:
>> What you want is std.range.chunks
>>
>>
>> auto a = [1,0,1,1,1,0,1,0,1,1,1,1,0];
>>     a.map!(to!string)
>>      .join("")
>>      .chunks(4)
>>      .map!(to!string) //don´t know why the chunks are not 
>> already strings at this point ;/
>>      .writeln;
>
> It's easier if you chunk before joining:
>
> auto a = [1,0,1,1,1,0,1,0,1,1,1,1,0];
>
> a.map!(to!string)
>  .chunks(4)
>  .map!join
>  .writeln;

Oh, thanks. What I didn't know about was join. Now I wonder how I 
could have found out about it, without asking here? Even yet I 
know it's name I cannot find it, nighter in the language 
documentation nor in the library documentation.