From: Rajinder Yadav <devguy.ca@...>
Date: 2009-10-20T13:29:06+09:00
Subject: Re: can 35.times do |i| be decrement of "i" ?

Jian Lin wrote:
> if there is a loop
> 
> 35.times do |i|
>   print i
>   # do something here...
> end
> 
> it is nice except i hope to count down the "i"...
> 
> it can be
> 
>   print 35 - i
> 
> but then if the number needs to be 36 then i need to change both places.
> 
> or it can be
> 
> 35.downto(1) do |i|
> 
> but doing so feel like needing to do some counting... 1 to 35 is in fact
> 35 times...  so that's good
> 
> if 35.times can go decrement that would be nice too.
> 
> thanks.

Not sure I follow what you're asking, or why downto is not a good solution? but 
you could try this:

irb(main):008:0> count=5
irb(main):009:0> count.times { |n| puts count-n }
5
4
3
2
1
=> 5

-- 
Kind Regards,
Rajinder Yadav

http://DevMentor.org
Do Good ~ Share Freely