How to replace multiple newlines in a row with one newline using Ruby

Question

I have a script written in ruby. I need to remove any duplicate newlines (e.g.)

\\n
\\n
\\n

to

\\n

My current

Answer 1

Use the more idiomatic String#squeeze instead of gsub.

str = "a\n\n\nb\n\n\n\n\n\nc"
str.squeeze("\n") # => "a\nb\nc"