From: dblack@...
Date: 2006-01-03T06:22:56+09:00
Subject: Re: New to Ruby and Programming

Hi --

On Tue, 3 Jan 2006, Hal Fulton wrote:

> James Edward Gray II wrote:
>> On Jan 2, 2006, at 2:08 PM, Hal Fulton wrote:
>> 
>>> Chad Perrin wrote:
>>> 
>>>> On Tue, Jan 03, 2006 at 12:03:03AM +0900, James Edward Gray II wrote:
>>>> 
>>>>> On Jan 2, 2006, at 2:29 AM, Chad Perrin wrote:
>>>>> 
>>>>> 
>>>>>> In particular, you could have an array called myarray
>>>>>> (for example) and iterate over its contents using the each  method to
>>>>>> perform the same action on each element of the array:
>>>>>> 
>>>>>> myarray.each do { |foo| puts foo }
>>>>> 
>>>>> 
>>>>> Only we would never write that since the following does the same  thing:
>>>>> 
>>>>> puts myarray
>>>> 
>>>> Well . . . true.
>>>> This is why I don't teach programming.
>>> 
>>> 
>>> Actually, I think there's a difference in behavior
>>> if you try them both.
>> 
>> 
>> Other than the return value?
>
> Well, I'm quite wrong. I thought that 'puts myarray' would print
> on a single line with elements scrunched together. Maybe this
> was true in the past?

I think what you're thinking of is array.to_s, which scrunches them
together.  But puts array does a separate puts on each element.


David

-- 
David A. Black
dblack@wobblini.net

"Ruby for Rails", from Manning Publications, coming April 2006!
http://www.manning.com/books/black