Rex Feng xta

S3 Website "Index Document"

`index.html`:

<html>
<head>
<title>403 Forbidden</title>
</head>
<body>

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

I have a lot of people at Hacker Hours ask about where to look for jobs - here are some places I recommend.

Boards

AngelList (startups)
Authentic Jobs
Craigslist (mostly freelance)
Digital DUMBO (NYC-specific)
Github
Idealist (social good)

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	//
	// Backbone.Rails.js
	//
	// Makes Backbone.js play nicely with the default Rails setup, i.e.,
	// no need to set
	// ActiveRecord::Base.include_root_in_json = false
	// and build all of your models directly from `params` rather than
	// `params[:model]`.
	//
	// Load this file after backbone.js and before your application JS.

	require 'sqlite3'
	require 'debugger'

	DB = SQLite3::Database.new("studentbody.db")

	create_students_table_sql = <<SQL
	CREATE TABLE students
	(
	id INTEGER PRIMARY KEY,
	first_name TEXT,

	# ...

	desc "Deploy website to s3/cloudfront via aws-sdk"
	task :s3_cloudfront => [:generate, :minify, :gzip, :compress_images] do
	puts "=================================================="
	puts " Deploying to Amazon S3 & CloudFront"
	puts "=================================================="

	# setup the aws_deploy_tools object
	config = YAML::load( File.open("_config.yml"))

	chris@luna ~ (master*) $ telnet localhost 8080
	Trying 127.0.0.1...
	Connected to localhost.
	Escape character is '^]'.
	GET /?name=Chris HTTP/1.0

	HTTP/1.1 200 OK
	Content-Type: text/html
	Server: WEBrick/1.3.1 (Ruby/1.9.3/2012-11-10)
	Date: Sat, 13 Apr 2013 00:07:11 GMT

	# coding=UTF-8
	import nltk
	from nltk.corpus import brown

	# This is a fast and simple noun phrase extractor (based on NLTK)
	# Feel free to use it, just keep a link back to this post
	# http://thetokenizer.com/2013/05/09/efficient-way-to-extract-the-main-topics-of-a-sentence/
	# Create by Shlomi Babluki
	# May, 2013