Ruby：扩展String类以将每个单词大写

Posted 2021-02-26

Don't forget to use require 'directory/name_of_class'

# This helper is opening up core Ruby String class
# in order to add a new method to all Strings
 
class String
 
  # Ruby has a capitalize method (used below) which capitalizes the
  #  first letter of a string.  But in order to capitalize the first
  #  letter of EVERY word we have to write our own.
 
  def titleize
    self.split(' ').collect {|word| word.capitalize}.join(" ")
  end
 
end