.empty and .length Amend language manual?

[Tobias Pankrath]

On Wednesday, 18 April 2012 at 14:35:07 UTC, dcoder wrote:
> I'm using the language reference on dlang.org (which is 
> awesome), anyways, I can't find a description of .empty in the 
> array section. Should it be there?  I don't see it in the 
> property section either.
>
> Could someone more expert than me, add it in somewhere?  Thanks.
>
> Also, is there any surprises / difference between the two:
>
> if( !arr.length)
>
> and
>
> if( arr.empty)
>
> do they produce the same thing all the time?
>
> thanks.

It's a function from std.array called via UFCS.