redsquirrel

##
# HACKER: Dave Hoover
#
# AUTHORS: Geoffrey Grosenbach http://nubyonrails.com
#          Also http://p.ramaze.net/1887  
#
# RUN:
#   script/console
#   paste the following and make sure an exception is thrown

redsquirrel

;; SICP 1.5

;; Given:
;;
;;     (define (p) (p))
;;
;;     (define (test x y)
;;       (if (= x 0)
;;           0
;;           y))

redsquirrel

;; What happens when Alyssa uses new-if is that all of new-if's
;; "arguments" are evaluated and then given to new-if, as opposed
;; to the special form of "if" where the "else" clause is only
;; evaluated if the predicate is false.  Since there is a
;; recursive call in the "else" clause, the call never returns.

redsquirrel

(define (good-enough? guess x)
  (< (abs (- (square guess) x)) 0.001))

;; The good-enough? test used in computing square roots will not be
;; very effective for finding the square roots of very small numbers. Explain.
;;
;; good-enough? is not effective for small numbers because the square
;; of a small number minus the number quickly becomes less than 0.001.

(sqrt 0.00001)

redsquirrel

(define (cbrt-iter guess x)
  (if (good-enough? guess x)
      guess
      (cbrt-iter (improve guess x)
                 x)))
                 
(define (improve guess x)
  (/ (+ (/ x (* guess guess)) (* 2 guess)) 3))

(define (good-enough? guess x)

redsquirrel

require "hpricot" # need hpricot and open-uri
require "open-uri"
require "date"

current_date = Date.civil(2007, 6, 16)
while (current_date != Date.today)
	puts "#{ current_date }:#{ fetch_number_of_assaults(current_date) }"
	current_date = current_date.next
end

redsquirrel

require "hpricot" # need hpricot and open-uri
require "open-uri"
require "date"

current_date = Date.civil(2007, 6, 16)
while (current_date != Date.today)
	puts [current_date, fetch_number_of_assaults(current_date)].join(":")
	current_date = current_date.next
end

redsquirrel

require 'httparty'
require 'json'

class Campfire
  include HTTParty
  base_uri 'https://YOUR_DOMAIN.campfirenow.com'
  basic_auth 'YOUR_API_KEY', 'X' # yes, that is a literal X string. it's needed to satisfy basic_auth(), but campfire ignores it.
  headers    'Content-Type' => 'application/json'
  
  def self.speak(message)

redsquirrel

#!/usr/bin/env ruby

# Print the vaportrail of a ruby file in a git repo, i.e.,
# the complexity level at each commit.
#
# Requires: >= bash ?.?
#           >= git 1.7.1
#           >= ruby 1.9.2
#           >= flog 2.5.0
#

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 %>