From: Mohammad Khan <mkhan@...>
Date: 2004-11-13T05:18:48+09:00
Subject: Re: array.each restart when array is changed

On Fri, 2004-11-12 at 15:03, Kevin B旦rgens wrote:
> Hi!
> 
> >I would just do ('a' .. 'z').to_a.first(gets.to_i)
> Call me stupid, but I don't find this function in the ruby book
> 
> HAND,
>  Kevin

what function? you might mean #..
in that case see 'Ranges' and 'Ranges as Sequences' topics at:
http://www.rubycentral.com/book/tut_stdtypes.html


below example might help you to understand better:

[mkhan@localhost bin]$ irb
irb(main):001:0> ('a' .. 'z')
=> "a".."z"
irb(main):002:0> ('a' .. 'z').to_a
=> ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
irb(main):003:0> ('a' .. 'z').to_a.first
=> "a"
irb(main):010:0> ('a' .. 'z').to_a.first(gets.to_i)
5
=> ["a", "b", "c", "d", "e"]
irb(main):010:0> ('a' .. 'z').to_a.first(gets.to_i)
3
=> ["a", "b", "c"]
irb(main):011:0>



Thanks
Mohammad


-- 

[mkhan@localhost local]$ rm -Rf /bin/laden