latentflip

Some brief instructions on how to use Sprocket 2 in Rails to get CoffeeScript
powered JS and SASS powered CSS with YUI compression all via the magic of rack.

This stuff will be native in Rails 3.1 and the layout of the files on the
filesystem will be different but this guide will get you working with it
while we wait for all that to finalize.

Ignore the number prefixes on each file. This is just to ensure proper order in the Gist.

It's based on eric1234 gist https://gist.github.com/911003. ijust made it 3.1 compliant in terms of convention

latentflip

words = File.read('/usr/share/dict/words').split

(1..10).each do 
  puts words[rand(words.length)]
end

#=> uncessant
    rumor
    deontology
    engross

latentflip

g=Golf=Hash
def g.method_missing s, a
  k=[]
  case s.to_s[-1]
  when ?1
    a.reduce :*
  when ?2
    a.split.sort_by{|i| i[1] }*' '
  when ?3
    h1 1..a

latentflip

### Do these once
ifconfig en1|grep ether > .macaddress      #Save your real mac address somewhere
#Alias the airport adapter
sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/sbin/airport

###Then each time you want to change MAC address:
airport -z                                 #disconnect but don't turn off the airport
sudo ifconfig en1 ether 00:00:00:00:00:00  #set new mac address (perhaps just increment your old one)
ifconfig en1|grep ether                    #check it's actually changed

latentflip

<script type="text/javascript">

  var a_function = function() {
    var a_number = 2;
    document.write('Within a_function, a_number = '+a_number+'<br>');

    return function(a) {
      document.write('Within the callback, a_number = '+a_number+'<br>');
      document.write('Within the callback, I was passed = '+a+'<br>');
      document.write('Within the callback, a * a_number = '+a*a_number+'<br>');

latentflip

# Export your Wordpress posts to Tumblr (also allows to delete some.)
# Author: Alexandre Solleiro <[email protected]> 
# How-to:
# 1. Export your Wordpress posts (http://en.blog.wordpress.com/2006/06/12/xml-import-export/)
# 2. Edit the information below to match your settings
# 3. To import, type "ruby wordpress2tumblr.rb --run" in the command line 
# 4. To delete some posts, type "ruby wordpress2tumblr.rb --delete 1,2,3,4" where 1,2,3,4 are post numbers. (Be careful not to use spaces between IDs)

# Edit these
WP_EXPORT_PATH = "./wordpress.2009-09-14.xml"   # path to the Wordpress Export file

latentflip

"hello" === "hello #true
String("hello") === "hello" #true
new String("hello") === "hello" #false
new String("hello") == "hello" #true

latentflip

So today I learned that if you have:

class Invoice < ActiveRecord::Base
  has_many :transactions
  before_save :cache_transaction_total

  def cache_transaction_total
    self.transaction_total = transactions.sum(:total) || 0
  end

end

latentflip

#!/usr/bin/env rake
# Add your own tasks in files placed in lib/tasks ending in .rake,
# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.

#Load all the tasks in lib/tasks
Dir[File.expand_path('../lib/tasks/', __FILE__) + '/*.rake'].each do |file|
  load file
end

#The original rails rakefile loading

latentflip

If we try and use parens only for precedence, not arg passing:

$('#contact_form').submit -> validate this

becomes

($ '#contact_form').submit -> validate this

which almost makes sense