From: Aleksandar Lazic <al-rubylang@...>
Date: 2006-10-31T03:45:09+09:00
Subject: Re: How can i do 'foreach (reverse sort { $hasref->{$a} <=> $hasref->{$b} } keys %{$hasref})..' in ruby

On Mon 30.10.2006 10:18, Daniel Sheppard wrote:
>> For the archive:
>> 
>> My working line is know:
>> 
>> clients.sort{|(k1,v1),(k2,v2)| v2 <=> v1}.each{|k,v| 
>>       printf("% 7i %s\n",v, k)
>> }
>
>For the simple case (such as yours) where the values being sorted are
>numeric, I find it neater to just do:
[snipp]
>Or:
>
>clients.sort_by{|k,v| v}.reverse_each {|k,v|
>	printf("% 7i %s\n",v, k)	
>}

Cool ;-)))

>Which is probably clearest in intention (looking at the original code
>you post, it's not immediately apparent the it's a reverse sort). These
>methods have the added benefit of also being the faster code (sort_by
>is much faster than sort).

You are right but I have hoped that a perl person understand my intetion
and point me to the right ruby solution ;-))

Thanks for your info and time.

Aleks