From: 7stud -- <bbxx789_05ss@...>
Date: 2011-04-08T03:34:27+09:00
Subject: Re: newlines in array problem

each() doesn't create a new array.  Why not use map()?  And you need to 
be careful using delete!() because it will change the strings in the 
original array too.

array = ["hel\nlo", "bl\nah"]

new_arr = array.map do |str|
  str.delete!("\n")
end

p new_arr
p array

--output:--
["hello", "blah"]
["hello", "blah"]


If you really want to preserve the original array, don't use delete! on 
the strings.  On the other hand, if you don't need two versions of the 
array hanging around in memory, then use all ! methods:

array = ["hel\nlo", "bl\nah"]

array.map! do |str|
  str.delete!("\n")
end

p array

--output:--
["hello", "blah"]

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