From: James Edward Gray II <james@...>
Date: 2006-01-03T05:16:50+09:00
Subject: Re: New to Ruby and Programming

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?

 >> (1..10).to_a.each { |n| puts n }
1
2
3
4
5
6
7
8
9
10
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
 >> puts (1..10).to_a
1
2
3
4
5
6
7
8
9
10
=> nil

James Edward Gray II