Ruby remove empty lines from string

Question

How do i remove empty lines from a string? I have tried some_string = some_string.gsub(/^$/, \"\");

and much more, but nothing works.

Answer 1

Replace multiple newlines with a single one:

fixedstr = str.gsub(/\n\n+/, "\n") 

or

str.gsub!(/\n\n+/, "\n")