thegoleffect

#!/usr/bin/env python

"""
A script to query the Amazon Web Services usage reports programmatically.

Ideally this wouldn't exist, and Amazon would provide an API we can use 
instead, but hey - that's life.

Basically takes your AWS account username and password, logs into the
website as you, and grabs the data out. Always gets the 'All Usage Types'

technoweenie

# logger = require('logger').create()
# logger.info("blah")
# => [2011-3-3T20:24:4.810 info (5021)] blah
# logger.debug("boom")
# =>
# logger.level = Logger.levels.debug
# logger.debug(function() { return "booom" })
# => [2011-3-3T20:24:4.810 error (5021)] booom
class Logger
  constructor: (options) ->

aemkei

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
                    Version 2, December 2004

 Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>

 Everyone is permitted to copy and distribute verbatim or modified
 copies of this license document, and changing it is allowed as long
 as the name is changed.

            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE

christiangenco

$("h3.list_header").each(function(sectionIndex){
  var sectionName = $(this).text().replace(/Chapter .+ - /,"").replace(/\:/,'-').replace(/^(V|I|X)+\. /,'');
  $(this).parent().next().find("a.lecture-link").each(function(videoIndex){
    var $lectureLink = $(this);
    var videoName = $.trim($lectureLink.text());
    var downloadLink = $lectureLink.attr('href').replace('view','download.mp4');
    var cookieHeader = ' --header \"Cookie:'+ document.cookie + '\" ';
    
    var directory = (sectionIndex+1) + '. ' + sectionName + '/';
    var filename = directory + (videoIndex+1) + '. ' + videoName + '.mp4';

othiym23

If you prefer VirtualBox or aren't running OS X, here are some instructions and a script to help you get started with SmartOS under VirtualBox. If you use VirtualBox, skip the first section and read the section on how to get the Node.js SmartMachine up and running.

Running SmartOS under vmware Fusion

1. Start by downloading the latest live image
2. When you run the new VM wizard, select "Continue without disk" on the first screen of the wizard.
3. Select Sun Solaris / Solaris 10 64-bit on the next screen.
4. You're going to get dumped to a config screen when the live image starts up, choose DHCP for the networking and defaults for everything else.
5. Pretty much the first thing you're going to want to do is figure out how to SSH into the box once it boots and creates its storage pools, because trying to do stuff in the virtual console is miserable. There's no cut and paste

joshuakfarrar

var arDrone = require('ar-drone')
  , client = arDrone.createClient()
  , stdin = process.openStdin()
  , isAirborne
  , speedFactor = 5
  , speeds = {
    x: 0,
    y: 0,
    z: 0
  }

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

magnetikonline

Bash string manipulation cheatsheet

Assignment
Assign value to variable if variable is not already set, value is returned. Combine with a : no-op to discard/ignore return value.	${variable="value"} : ${variable="value"}

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

ayamflow

var cameraZ = camera.position.z;
var planeZ = 5;
var distance = cameraZ - planeZ;
var aspect = viewWidth / viewHeight;
var vFov = camera.fov * Math.PI / 180;
var planeHeightAtDistance = 2 * Math.tan(vFov / 2) * distance;
var planeWidthAtDistance = planeHeightAtDistance * aspect;

// or