week 3 homework for Nathan

.gitignore

@@ -1,5 +1,6 @@
 .DS_Store
 /*/.DS_Store
 /*/*/.DS_Store
+/*/doc/*
 .ruby-version
 .ruby-gemset

midterm/instructions_and_questions.txt

@@ -9,17 +9,30 @@ Instructions for Mid-Term submission and Git Review (10pts):
  - Push your changes to the remote
  - After 6pm Thursday November 13th you will not be able to push to your remote repository (or clone).
 
- Questions (20pts):
- - What are the three uses of the curly brackets {} in Ruby?
- - What is a regular expression and what is a common use for them?
- - What is the difference between how a String, a symbol, a FixNum, and a Float are stored in Ruby?
- - Are these two statements equivalent? Why or Why Not?
-   1. x, y = "hello", "hello"
-   2. x = y = "hello"
-- What is the difference between a Range and an Array?
-- Why would I use a Hash instead of an Array?
-- What is your favorite thing about Ruby so far?
-- What is your least favorite thing about Ruby so far?
+Questions (20pts):
+ 1 - What are the three uses of the curly brackets {} in Ruby? 
+
+
+ 2 - What is a regular expression and what is a common use for them?
+
+
+ 3 - What is the difference between how a String, a symbol, a FixNum, and a Float are stored in Ruby?
+
+
+ 4 - Are these two statements equivalent? Why or Why Not?
+
+
+5 - What is the difference between a Range and an Array?
+
+
+6 - Why would I use a Hash instead of an Array?
+
+
+7 - What is your favorite thing about Ruby so far?
+
+
+8 - What is your least favorite thing about Ruby so far?
+
 
  Programming Problems (10pts each):
  - Write a passing rspec file called even_number_spec.rb that tests a class called EvenNumber.

spec_helper.rb

@@ -2,7 +2,11 @@
   config.expect_with :rspec do |c|
     c.syntax = [:should, :expect]
   end
+
+  config.color = true
+
   config.mock_with :rspec do |mocks|
     mocks.syntax = :should
   end
+
 end

week1/exercises/rspec_spec.rb

@@ -1,6 +1,7 @@
 # encoding: utf-8
 require 'rspec/collection_matchers'
 require_relative '../../spec_helper'
+
 describe "The Rspec ruby gem" do
 
   context "Domain Specific Language" do
@@ -44,7 +45,7 @@
 
       # When this example fails,
       # it will show "expected" as 2, and "actual" as 1
-      1.should eq 2
+      2.should eq 2
 
     end
 
@@ -54,10 +55,10 @@
 
       # The following expression is false.
       # However, this example PASSES because no expectation was created.
-      true == false
+      #true == false
 
       # The following line of code is correct, and would cause the example to fail:
-      # true.should == false
+      true.should == true
 
       # Lesson: It's easy to write bad tests.
 
@@ -81,16 +82,32 @@
       (1+2-5*6/2).should eq -12
     end
     it "should count the characters in your name" do
+<<<<<<< HEAD
+      "make a test to count the characters in your name"
+=======
+>>>>>>> d15be6bea7f47e9899c2d287761019ffd7532ba0
       "Tom".should have(3).characters
     end
 
     it "should check basic math" do
+<<<<<<< HEAD
+      "make a test to check some basic math"
+      (1+4+5).should eq 10
+    end
+
+    it "should check basic spelling" do 
+      "make sure i is before e" 
+      "field".should include("ie") 
+    end
+
+=======
       (1+1).should eq 2
     end
 
     it "should check basic spelling" do
       "field".should include("ie")
     end
+>>>>>>> d15be6bea7f47e9899c2d287761019ffd7532ba0
 
   end
 end

week1/homework/questions.txt

@@ -3,13 +3,21 @@ Chapter 3 Classes, Objects, and Variables
 p.86-90 Strings (Strings section in Chapter 6 Standard Types)
 
 1. What is an object?
+  An object is a thing with properties and methods that can be used to do things.  
 
 2. What is a variable?
+  A variable is a space in memory where you can store a value. There are different types of variables based on the kind of data stored (integer, string, bignum) and the places in your app where you want to use the app (local, class, instance, etc.)
 
 3. What is the difference between an object and a class?
+  An object is an instance of a class, a class is a blueprint for objects. 
 
 4. What is a String?
+  A string is a collection of one or more text/numbers that has a set of properties. 
 
 5. What are three messages that I can send to a string object? Hint: think methods
+  Methods for strings includ Upcase, Downcase, Reverse, length, chop, clear, an_array (to_a),  empty?, strip, etc 
 
 6. What are two ways of defining a String literal? Bonus: What is the difference between them?
+  (a) You can define a string by using double quotation marks: s = "this is a string"
+  (b) YOu can also define a string with single quotation marks, but you cannot escape special characters or use interpolation with #{..}: s = 'this is another string' 
+

week1/homework/strings_and_rspec_spec.rb

@@ -16,18 +16,21 @@
 			@my_string = "Renée is a fun teacher. Ruby is a really cool programming language"
 		end
 
-		it "should be able to count the charaters"
+		it "should be able to count the charaters" do 
+			@my_string.should have(66).characters 
+		end 
 
 		it "should be able to split on the . charater" do
-			pending
-			result = #do something with @my_string here
+			result = @my_string.split(".") 
 			result.should have(2).items
 		end
 
 		it "should be able to give the encoding of the string" do
-			pending 'helpful hint: should eq (Encoding.find("UTF-8"))'
-			encodeing #do something with @my_string here
-			#use helpful hint here
+			#helpful hint: should eq (Encoding.find("UTF-8"))'
+			#@my_string = @my_string.join(".")
+			@my_string.force_encoding("UTF-8") 
+			result = @my_string.encoding #do something with @my_string here
+			result.should eq(Encoding.find("UTF-8"))
 		end
 	end
 end

week2/examples/book.rb

@@ -0,0 +1,27 @@
+class Book 
+
+  @@book_count = 0 
+
+  #create a self. method so that if you change class name it cascades down 
+  def self.book_count 
+    @@book_count 
+  end
+
+  attr_accessor :title, :pages, :author 
+
+  def initialize title = "unknown", author: "uknown" , pages: 0
+    @title = title 
+    @pages = pages
+    @author = author 
+    @@book_count += 1
+  end 
+
+  def pages 
+    @pages 
+  end 
+
+  def book_count 
+    @@book_count 
+  end 
+
+end 

week2/examples/book_spec.rb

@@ -0,0 +1,33 @@
+require_relative '../../spec_helper' 
+#when you say 'require' it's like running this code right here 
+#require knows about the .rb extension 
+require_relative 'book' 
+
+
+describe Book do 
+
+    #create a new instance of book class 
+  before :each do 
+    @my_book = Book.new 
+  end 
+
+  it "should have a title" do 
+    #see if it should respond to title 
+    @my_book.should respond_to? "title" 
+
+  end
+
+  it "should not have  be nil" do 
+    @my_book.title.should_not be_nil
+  end 
+
+  it "Should have a non empty title" do 
+    @my_book.title.size.should > 0
+  end 
+
+  it "should let me set the title" do 
+    @my_book.title = "Harry Potter" 
+    @my_book.title.should eq "Harry Potter" 
+  end 
+
+end 

week2/examples/mad_libs.rb

@@ -0,0 +1,4 @@
+
+puts "enter a noun:" 
+noun = gets.chomp 
+puts "#{noun} is cool"  

week2/exercises/book_spec.rb

@@ -3,6 +3,11 @@
 
 describe Book do
 
+
+    it "should count the books in our library" do 
+      Book.book_count.should eq 1 
+    end 
+
   context "::book_count" do
 
     it "should count how many books have been created" do
@@ -37,11 +42,22 @@
       @book.should respond_to "title"
     end
 
+
+    it "should have a default title of unknown" do 
+      @my_book.title should eq "unknown"
+    end 
+
     it "should allow me to set the title" do
       @book.title = "Snow Crash"
       @book.title.should eq "Snow Crash"
     end
 
+    it "should allow us to set the title on a new instance" do 
+      book = Book.new "Programming Ruby" 
+
+      book.title.should eq "Programming Ruby" 
+    end 
+
 
 
   end

week2/homework/questions.txt

@@ -1,13 +1,20 @@
 Please Read The Chapters on: 
-Containers, Blocks, and Iterators 
-Sharing Functionality: Inheritance, Modules, and Mixins
+Containers, Blocks, and Iterators -- ch4
+Sharing Functionality: Inheritance, Modules, and Mixins -- ch 5 
 
 1. What is the difference between a Hash and an Array?
+  NTR: An array is an ordered list that can be referenced based on positions. A hash is a list of key - value pairs, which can be referenced by the key value. 
 
 2. When would you use an Array over a Hash and vice versa?
+  NTR: Use an array when you a list of values to store and speed / perfromance is critical. Use a hash when you have a value you want to refer to something else. 
 
 3. What is a module? Enumerable is a built in Ruby module, what is it?
+  NTR: A module is a collection of classes and functions that can be added into another  class or module as a mixin.  
+  Enumerable allows you to cycle through elements of elements (lists of items). YOu can use it with each or map or collect to go to every item in the list and perform some kind of check/operation. 
+
 
 4. Can you inherit more than one thing in Ruby? How could you get around this problem?
+  NTR: One child class can have one parent class. You can use modules to get around this by including them within the code with i mixin.  
 
 5. What is the difference between a Module and a Class?
+  NTR: At an implementation level you use the word Module instead of Class to instantiate. At an implementation level, a class is a thing, and a module is way to add more functionality to your thing without inheriting from another class. It also prevents namespace clashes by securing names within seperate realms that can then be separated with dot notation (module.function1 vs. class.funtion1). 

week2/homework/sim_says.rb

@@ -0,0 +1 @@
+

week2/homework/simon_says.rb

@@ -0,0 +1,41 @@
+
+module SimonSays 
+
+  def echo(msg)
+    msg
+  end
+
+  def hello 
+    puts "Hello" 
+  end 
+
+  def shout(msg)
+    msg.upcase
+  end
+
+  def repeat(msg, count=2)
+    str = ""
+    count.times do
+      str += "#{msg} "
+    end
+    str.strip
+
+    #another way to solve this 
+    str = []
+    count.times do 
+      str.push(msg)
+    end
+    str.join(" ")
+  end
+
+  def start_of_word(word, length)
+    word[0, length]
+  end
+
+  def first_word(phrase)
+    phrase.split(' ')[0]
+  end 
+
+
+end 
+

week3/exercises/monster.rb

@@ -11,4 +11,8 @@ def initialize(noc, legs, name="Monster", vul = [], dangers = [])
 		@dangers = dangers
 		@legs = legs
 	end
+
+	def attack human 
+		"#{name} attacked #{human.name}" 
+	end 
 end