From: Jeff Wood <jeff.darklight@...>
Date: 2005-08-18T22:30:09+09:00
Subject: Re: Newbie question

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Jeff Wood wrote:

> Lothar Scholz wrote:
>
>> Hello len,
>>
>> l> Is there some difference in the code I'm not seeing or is one better
>> l> than the other:
>>
>> l> languages = ['English', 'German', 'Ruby']
>>
>> l> languages.each do |lang|
>> l>   puts 'I love ' + lang + '!'
>> l>   puts 'Don\'t you?'
>> l> end
>>
>> l> languages.each { |lang|
>> l>     puts 'I love ' + lang + '!'
>> l>     puts "Don't you?"}
>>
>>
>> No both are the same, the one liner
>>
>> languages.each { |lang| puts "I love #{lang}!\nDon't you?" }
>>
>> is also doing the same and a little bit more rubyish
>>
>>  
>>
> Both are acceptable, but it is common convention that you use {} for 
> one-liners and use do end for multi-line blocks.
>
> j.
>
Oh, and there is quite a difference in the evaluation of both within the 
interpreter due to order of operations issues.  There's a good  write up 
of this in the PickAxe (The standard Ruby reference material ( book ) 
Programming Ruby by Dave Thomas)

j.


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