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Groups > comp.lang.ruby > #2481

Re: newlines in array problem

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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"]

-- 
Posted via http://www.ruby-forum.com/.

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newlines in array problem Cyril Joe <cyril_jose@ymail.com> - 2011-04-07 11:38 -0500
  Re: newlines in array problem Michel Demazure <michel@demazure.com> - 2011-04-07 11:43 -0500
  Re: newlines in array problem Jesús Gabriel y Galán <jgabrielygalan@gmail.com> - 2011-04-07 11:50 -0500
  Re: newlines in array problem Cyril Jose <cyril_jose@ymail.com> - 2011-04-07 13:08 -0500
  Re: newlines in array problem 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-07 13:34 -0500
    Re: newlines in array problem Jesús Gabriel y Galán <jgabrielygalan@gmail.com> - 2011-04-07 14:17 -0500
      Re: newlines in array problem 7stud -- <bbxx789_05ss@yahoo.com> - 2011-04-07 18:29 -0500

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