Passing optional hash arguments

gistfile1.rb

# Using an optional hash
# 
# **branch based off of the optional hash

def initialize(task_string, created_at = Time.now, completed_at = nil)
end

def initialize(task_string, optional_values = {})
    values = {created_at: Time.now, completed_at: nil}.merge(optional_values)
    @task = task_string
    @created_at = values[:created_at]
    @completed_at = values[:completed_at]
end

class WordProcessor
  def initialize (string, conditional_arguments = {})
    @string = string
    if conditional_arguments[:reverse]
      reverse_the_string!
    elsif conditional_arguments[:capitalize]
      capitalize_the_string!
    elsif conditional_arguments[:insert]
      insert_spaces_into_string!
    end
  end
  
  def print_string
    puts @string
  end
  
  def reverse_the_string!
    @string = @string.split('').reverse.join('')
  end
  
  def capitalize_the_string!
    @string.upcase!
  end
  
  def insert_spaces_into_string!
    @string = @string.split('').join(' ')
  end
end

new_foobar = WordProcessor.new("This is a string")

new_foobar.print_string

new_foobar = WordProcessor.new("This is a string", reverse: true)
new_foobar.print_string

new_foobar = WordProcessor.new("This is a string", capitalize: true)
new_foobar.print_string