Design question regarding saving changes in the original array and/or returning a new set

[H. S. Teoh]

On Sun, Oct 23, 2022 at 01:32:44PM +0000, matheus via Digitalmars-d-learn wrote:
> Hi,
> 
> I have a design question and I'd like to hear some advice. Let's say
> that I want to create a method to sort an array:
> 
>     arr.sort(asc);
> 
> I think usually this would usually return a new set of that array but
> now sorted.

No, it does not.  It sorts `arr` in-place.


> But If I want to do this in the original, I think I would do this:
> 
>     arr.sort(asc).save();

That's not necessary, the .save is completely redundant.


[...]
> By the way in this design I'd like to have both options, return a new
> set and/or change the original.

If you want a new sorted array without touching the original, do this
instead:

	auto sortedArr = arr.dup.sort();


T

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