ruby on rails - Converting string to title-case -

so i'm bit of noob in ruby , mission manually convert string title-case. have been able create method believe meet requirements assignments (it's not flexible, do), have hit 1 final snag. cannot seem join final array 1 string. code , rspec errors below. believe have use .join(" ") somewhere, not sure of exact syntax. in advance help!

my code:

class title   attr_accessor :string    def initialize(string)     @string = string   end    def fix     string.split(" ").each_with_index |value, index|       if index >= 2 && value.length <= 3         value.downcase!       else         value.capitalize!       end     end   end end 

rspec:

expected: "the great gatsby"      got: ["the", "great", "gatsby"]  (compared using ==)  exercise_spec.rb:6:in `block (3 levels) in <top (required)>' 

again:

expected: "little red riding hood"      got: ["little", "red", "riding", "hood"]  (compared using ==)  exercise_spec.rb:9:in `block (3 levels) in <top (required)>' 

again:

expected: "the lord of rings"      got: ["the", "lord", "of", "the", "rings"]  (compared using ==)  exercise_spec.rb:12:in `block (3 levels) in <top (required)>' 

again:

expected: "the sword , stone"      got: ["the", "sword", "and", "the", "stone"]  (compared using ==)  exercise_spec.rb:17:in `block (3 levels) in <top (required)>' 

quick fix:

  def fix     string.split(" ").each_with_index |value, index|       if index >= 2 && value.length <= 3         value.downcase!       else         value.capitalize!       end       value     end.join(" ")   end 

if want ruby way of doing it:

def fix   string.split(" ").map(&:capitalize).join(" ") end