temp.rb_v2

gistfile1.rb

s = "Welcome to the forum.\nHere you can learn Ruby.\nAlong with other members.\n"

def add_index(lines)
  indexed_lines = []
  lines.each_line.with_index(offset = 1) do |line, index|
    indexed_lines << "Line #{index}: #{line}"
  end
  indexed_lines
end

lines = add_index(s)
lines.each { |line| puts line }