Mini-projects

phone_splitter.rb

class PhoneSplitter
  
  attr_reader :number_array

  def initialize(number)
    @number = number
    @number_array = []
  end
  
  # - Checks to see if the number provided is proper length.
  def correct_length?
    if @number.length == 10
      true
    else
      false
    end
  end
  
  # - Splits numbers and adds them to number_array
  def number_array
    @number_array = @number.split("")
  end
  
  # - Returns the number in (xxx)xxx-xxxx form
  def return_number
    return "(#{number_array[0]}#{number_array[1]}#{number_array[2]})#{number_array[3]}#{number_array[4]}#{number_array[5]}\
-#{number_array[6]}#{number_array[7]}#{number_array[8]}#{number_array[9]}#{number_array[10]}"
  end
    
    

puts "Please enter your phone number as one whole number - e.g. 1234567890"

number = gets.chomp.to_s

new_number = PhoneSplitter.new(number)

if new_number.correct_length? == false
  abort("Sorry, that is not a valid number")
end

new_number.number_array
puts "You're phone number (reformatted) is '#{new_number.return_number}'"
end

slim_paragraph.rb

# - "Bike" is just random placeholder text.

class SlimParagraph

  attr_accessor :bike
  
  # - Set's 'bike' definition.
  def initialize
    @bike = "Something you ride on to get to places, or for exercise."
  end
  
  # - Returns portion of definition based on how many characters the user wants to see.
  def first_words(x)
    @bike[0...x] + "..."
  end
  
  def all_words
    @bike
  end
  
end


this_user = SlimParagraph.new

puts "Would you like to see this definition?"

answer = gets.chomp.downcase

if answer != "no"
  puts "How many characters would you like to see? (E.g. 5, 15, 20)"
  answer = gets.chomp.to_i
  puts this_user.first_words(answer)
else
  abort("Goodbye!")
end

puts "Would you like to see the whole definition?"

answer = gets.chomp.downcase

if answer != "no"
  puts this_user.all_words
else 
  abort("Goodbye!")
end

split_array.rb

# - Super basic, no class.
# - Returns all but the last object in the array, then adds 'and' followed by last object.

array = ["Red", "Blue", "Green", "Yellow", "Orange"]


x = array.length
y = x - 2
z = x -1

puts array[0..y].join(", ") + ", and #{array[z]}"