Capitalize - Write a method which will capitalize the first letter of each word in a string. Do not use the #capitalize method.

Capitalize

def cap(str)
  words = str.split(" ")

    idx = 0
    while idx < words.length
      word = words[idx]

      word[0] = word[0].upcase	# change the word within array

      idx += 1
    end
	
  p words.join(" ")
end

cap("we love bananas")
cap("this beer is delicious")