How can I use UFCS for a loop

[Tim]

On Tuesday, 26 January 2021 at 01:38:45 UTC, Q. Schroll wrote:
> On Tuesday, 26 January 2021 at 00:47:09 UTC, Tim wrote:
>> Hi all,
>>
>> How can I change the following to a more D-like approach by 
>> using UFCS?
>>
>>>double[3] result;
>
> Unless you have a good reason, use a slice and not a static 
> array:
>
>     double[] result;
>
> The result of std.array.array will be a slice anyway.

Why would I need to use a slice instead of a static array? I'm 
using a static array in this instance because I have and 
underlying 3d vector with double[3] as its base type