Re: [FWP] Closest hash value

[Fergal Daly <fergal@esatclear.ie>]

John Porter wrote:
> 
> Chaim wrote:
> > >>>>> "FD" == Fergal Daly <fergal@esatclear.ie> writes:
> >
> > FD> You can get the "first" key with
> > FD> ($best) = each %h;
> >
> > I know, but I'm not sure if that is optimized. It may cause all
> > 1_000_000 keys to be copied to the stack and then the first item
> > removed.
> >
> > Anyone know for sure?
> 
> Sure!  No lists.  each() is absolutely O(1).
> 

Unless it's a weird tied hash in which case anything goes,

Fergal

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