arr = ["red","green","yellow"]

arr2 = arr.clone
arr2[0].replace("blue")

puts arr.inspect
puts arr2.inspect

produces:

["blue", "green", "yellow"]
["blue", "green", "yellow"]

Is there anyway to do a deep copy of an array of strings, other than using Marshal as i understand that is a hack.

I could do:

arr2 = []
arr.each do |e|
  arr2 << e.clone
end

but it doesn't seem very elegant, or efficient.

Thanks