How to iterate a string containing newlines in Ruby

Let’s say you have a string that resembles "a string that \n is really multiple paragraphs \n" and you want to work with each section of the string with a newline, Ruby has a method to handle that called each_line.

paragraph = []
example_paragraph = "a string that \n is really multiple paragraphs \n"
example_paragraph.each_line do |line|
  paragraph << line
end

=> paragraph
["a string that \n", " is really multiple paragraphs \n"]

It can also iterate over the string any time it encounters a substring passed to it:

paragraph = []
example_paragraph = "a string that \n is really multiple paragraphs \n"
example_paragraph.each_line("really") do |line|
  paragraph << line
end

=> paragraph
["a string that \n is really", " multiple paragraphs \n"]