randalmaile

# Math Operations

p "simple math"
p 1+2
p 5-1
p 6/2
p 4*3
p "exponents"
p 2**3
p "operations run on variables"

randalmaile

def link_to(text, address)
  p "<a href='#{address}'>#{text}</a>"
end
  
describe "link_to" do
  it "should return a valid link for Bloc" do
    link_to("Bloc", "http://www.bloc.io").should eq("<a href='http://www.bloc.io'>Bloc</a>")
  end
  it "should return a valid link for Google" do
    link_to("Google", "http://www.google.com").should eq("<a href='http://www.google.com'>Google</a>")

randalmaile

# NO METHOD ERROR

def hello(name)
  p "Hello #{name}"
end
  

describe "hello" do
  it "should return 'Hello World' when passed 'World'" do
    hello("World").should eq("Hello World")

randalmaile

#IF STATEMENTS

def favorite_number(fav, guess)
  if guess < fav
    "Too low"
  elsif guess > fav
    "Too high"
  else 
    "You got it!"
    end

randalmaile

# ARRAY DEFINITION

def new_array(a,b,c,d)
  #return an array consiting of the arguments here
  $new_array = [a,b,c,d]
end
  
def first_and_last(a)
  $first_and_last = [a.first, a.last]
end

randalmaile

# Basics

class Book
  def title_and_author(title, author)
    # set title to instance variable
    # set author to instance variable
    @title = title
    @author = author
  end
  

randalmaile

# INITIALIZE

class Car
  attr_accessor :make
  attr_accessor :model
  attr_accessor :year
  
  def initialize(make, model, year)
    @make, @model, @year = make, model, year
  end 

randalmaile

# Each loop (non-assignment practice)

[1] pry(main)> a = ["red", "blue", "green"]
=> ["red", "blue", "green"]
[2] pry(main)> a.each do |color|
[2] pry(main)*   p "The color is #{color}"
[2] pry(main)* end  
"The color is red"
"The color is blue"
"The color is green"

randalmaile

#SETTING ATTRIBUTES

class User
  attr_accessor :name, :email, :bio, :age, :sex
  def initialize(config = {})
    @name = config[:name] || "n/a"
    @email = config[:email] || "n/a" 
    @bio = config[:bio] || "n/a"
    @age = config[:age] || "n/a"
    @sex = config[:sex] || "n/a"

randalmaile

#Inheritance

class Shape
attr_accessor :color
  def initialize(color = nil)
    @color = color || "Red"
  end
  
  def can_fit?(shapeInstance)
    if self.area >= shapeInstance.area