From: Logan Capaldo <logancapaldo@...>
Date: 2006-05-04T23:32:58+09:00
Subject: Re: Ruby equivalent to simple awk program


On May 4, 2006, at 10:16 AM, Marco Bottaro wrote:

> I keep finding myself iterating and collecting this way. Would you  
> care
> please to illustrate with an example?
>
> Very much appreciated!
>
> Cheers,
>
> Marco
>

Pretty much anything with an #each has a #to_a method.
irb(main):001:0> str = "Hello\nOne\nTwo\n"
=> "Hello\nOne\nTwo\n"
irb(main):002:0> a1 = []
=> []
irb(main):003:0> str.each { |line| a1 << line }
=> "Hello\nOne\nTwo\n"
irb(main):004:0> a1
=> ["Hello\n", "One\n", "Two\n"]
irb(main):005:0> a2 = str.to_a
=> ["Hello\n", "One\n", "Two\n"]
irb(main):006:0> a2
=> ["Hello\n", "One\n", "Two\n"]

As you can see, #to_a does exactly what your code did, with a lot  
less typing.