dmill

0x9B3194612297b8d63c8Af2729a20CA02f4fDf114

dmill

Monday

Olessia

• Nested resources
• saving new records to the DB
• redirecting

Kayanee

• Paywall

dmill

.lecture-desc {
  color: blue;
}

.make-red {
  color: red;
}

dmill

POST THIS!!!!!!!!!!!!!!

dmill

1. SQLite vs. MySQL vs. PostgreSQL - differences and tradeoffs
2. Blockchain - What is it?
3. Graph Data Types - where they're used, why they're used
4. I/O in Ruby - Specifically working with Filesystem
5. Web scraping
6. Sinatra Web Framework vs. Rails
7. Recursion Refresher
8. Ruby Gems and Bundler
9. Exceptions - best practices
10. Regex Cheatsheet - most common types of Regex

dmill

1. Question.count
2. Lingo.find(16)
3. Lingo.find_by_term("Linux"), Lingo.where(term: "Linux").first, Lingo.find_by(term: "Linux"), Lingo.where("term = ?", "Linux").first
4. Question.where(user_id: 67), User.find(67).questions
5. User.first(500).pluck(:last_name)
6.*question_count = Question.group(:user_id).count
   question_count.values.max
   question_count.select {|k, v| v == 10}

7. Question.last.destroy

dmill

class Tile
  attr_reader :value

  def initialize(initial_value)
    if initial_value == 0
      @mutable = true
      @value = nil
    else
      @mutable = false
      @value = initial_value

dmill

class Foo
  def self.add_fizz_method &block
    define_method 'fizz', &block
  end
end

class Bar < Foo; end

begin
  Bar.new.fizz

dmill

module Singing
  def sing()
    p "LALALALALALALALALA!"
  end
end

class Animal; end

class Feces
  def initialize(food)

dmill

class Fixnum
  NUMERAL_MAPPING = { 1000 => "M", 900 => "CM", 500 => "D",
                      400 => "CD", 100 => "C", 90 => "XC",
                      50 => "L", 40 => "XL", 10 => "X",
                      9 => "IX", 5 => "V", 4 => "IV", 1 => "I" }
  def to_roman
    num = self

    NUMERAL_MAPPING.reduce("") do |string, (k, v)|
      if num / k != 0