From: benny <listen@...>
Date: 2004-11-05T22:58:41+09:00
Subject: Re: Cleaner way to do this?

benny wrote:

> Harry Ohlsen wrote:
> 
>>>  -----Original Message-----
>>>  From: Wayne Vucenic [mailto:nightphotos@gmail.com]
>>>  Sent: Friday, 5 November 2004 12:12
>>>  To: ruby-talk ML
>>>  Subject: Re: Cleaner way to do this?
>>>
>>>  How about
>>>
>>>  [1, 2, 3, 4, 5].each_with_index do |x, i|
>>>    if i == 0
>>>      print x
>>>    else
>>>      print ", ",x
>>>    end
>>>  end
>> 
>> That's what I initially suggested :-).
>> 
>> However, he felt it was a bit crazy to do the test every time, given the
>> large size of the array.
>> 
> 
> how about this?
> 
>  arr = [1, 2, 3, 4, 5]
>  first = arr.shift
>  print arr.inject(first) { | c, i | "#{c.to_s}, #{i.to_s}" }
> 
> benny

or even 

 print  [1, 2, 3, 4, 5].join(' ,')

benny