Ruby Challenge 3: Capitalizing words within a string

gistfile1.rb

# Challenge 3: http://www.therubygame.com/challenges/3/submissions
str = "The small brown & ginger fox JUMPED OVER the gate"
# output = "The Small Brown & Ginger Fox Jumped Over The Gate"

# Algorithm:
# 1. downcase #{str}
# 2. to_a
# 3. capitalize on each array elements
# 4. merge as str
def Capitalize(str)
  str.split.each {|x| x.capitalize!}.join ' '
end

puts "ip: #{str}"
puts "op: #{Capitalize str}"