Sihui

    config.assets.paths += [
      Rails.root.join('vendor', 'assets', 'fonts')
    ]

    config.assets.precompile += [
      'icons.eot',
      'icons.svg',
      'icons.ttf',
      'icons.woff'
    ]

Sihui

# Concrete Strategy
class GrilledChickenStuffing
  def cook
    stuffing = []
    stuffing << 'sliced tomato'
    stuffing << 'lettuce'
    stuffing << 'grilled chicken breast'
    stuffing
  end
end

Sihui

class GrilledChicken
  def cook
    stuffing = []
    stuffing << 'sliced tomato'
    stuffing << 'lettuce'
    stuffing << 'grilled chicken'
    stuffing
  end
end

Sihui

class Burger
  attr_reader :top_bun, :bottom_bun
  attr_accessor :stuffing

  def initialize(stuffing)
    @top_bun = TOP_BUN
    @stuffing = stuffing
    @bottom_bun = BOTTOM_BUN
  end

Sihui

chicken_burger 
   = Burger.new(GrilledChicken.new)
cheese_burger
   = Burger.new(BeefPatty.new)

Sihui

times_2 = Proc.new { |num| num * 2 }
times_2.call(3) # returns 6

times_2 = proc { |num| num * 2 }
times_2.call(3) # returns 6

times_2 = lambda { |num| num * 2 }
times_2.call(3) # returns 6
  
times_2 = -> (num) { num * 2 }

Sihui

# Example: passing arguments
def ten_plus
  puts 'before yield'
  yield(10)
  puts 'after yield'
end

ten_plus do |num|
  puts(num + 100)
end

Sihui

def burger
  puts 'top bun'
  yield if block_given?
  puts 'bottom bun'
end

burger do
  puts 'lettuce'
  puts 'tomato'
  puts 'chicken breast'

Sihui

#Code Block
#1 {} Mostly used as a one-liner
{ puts 'Hi' }
#2. do end
do 
  puts 'Hi'
end
#arguments are 
#  wrapped between ||
[1, 2].map {|num| num * 2}

Sihui

#Proc
#1. Proc.new followed by a code block
Proc.new { puts 'Hi' }
Proc.new do
  puts 'Hi'
end
#2. proc followed by a code block
proc { puts 'Hi' }
proc do
  puts 'Hi'