redsquirrel

The first ever Computer Science "Man of the Year"...

...had a PhD in mathematics from Yale, and was a professor of math.

...joined the Navy at age 37 to help with World War II.

...learned to program as one of the original programmers of the Mark 1 at Harvard, which was instrumental in
completing the Manhatten project.

...became the Head of Software at the first computer-focused tech startup, which created the first popular

redsquirrel

require 'rubygems'
require 'linkedin'

client = LinkedIn::Client.new('75abcxm123himom', 'NDwtffWomglylolV')

request_token = client.request_token({}, :scope => "r_network")

rtoken = request_token.token
rsecret = request_token.secret

redsquirrel

a = [1,2,3,4,4]
def mode(a)
  h = {()} # what are these parentheses?
  
  a.length.times do |i|
    # Code block?
    
  end  
end

redsquirrel

# some Ruby code here
def method_being_worked_on
  # awesome code
end

redsquirrel

Do you have Ruby installed?

• On Windows
• On Mac: you already have it!
• On Linux

Do you have SQLite installed?

redsquirrel

Squirrels     04/22
Foxes         05/13
Otters        06/03
Grasshoppers  06/24
Dragonflies   07/15
Nighthawks    08/05
Fireflies     08/26
Coyotes       09/16
Salamanders   10/07

redsquirrel

def fib_recursive(i, m = 0, n = 1, count = 0)
  return m if count == i
  fib_recursive(i, n, m+n, count+1)
end

def fib_iterative(i)
  m, n = 0, 1
  i.times do
    m, n = n, m+n
  end

redsquirrel

############## views/products/_trending.html.erb ###############

<% @products.each do |product| %>
  <div class="product">
    <%= link_to (image_tag product.thumbnail), product %>
    <div class="product-overlay-details">
      <%= product.name %>...
    </div>
  </div>
<% end %>

redsquirrel

array.each_with_index do |line, index|
  if line.match(/^<s>/i)
    start = index
    splits = line.scan(/<(?:s|c)>\s*/i).map(&:size)
  end
  
  # detect a line that's all dashes and spaces
  if line.match(/^[\- ]+$/)
    start = index
    # scan for dashes followed by a space

redsquirrel

require 'test/unit'

def score(*frames)
  score = roll_count = 0
  rolls = frames.flatten
  frames.each do |frame|
    if sum(frame) == 10
      score += sum(next_three(rolls, roll_count))
    else
      score += sum(frame)