Jedd Haberstro jhaberstro

`Actor` Queue Notes

The first thing to understand is that the head field inside of scalaz.concurrent.Actor is not the "head" of the message queue in any traditional sense of the word. A better description would be "last". The there are no pointers to the head of the queue, which one of the very clever things about this implementation.

Empty Actor

Consider the case where the actor has no outstanding messages. This new message will go into the following code:

 def !(a: A): Unit = {

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.

Edit 2021/02/16: warning

This gist is very old. I don't even know if it still works. Check the comments below to find more robust solutions, like youtube-dl for example, see this comment.

1

Go to http://www.arte.tv/ and select any videos, for example http://www.arte.tv/guide/fr/046618-011/silex-and-the-city

2

In the source code extract the src parameter of the iframe player:

http://www.arte.tv/player/v2/index.php?json_url=http%3A%2F%2Farte.tv%2Fpapi%2Ftvguide%2Fvideos%2Fstream%2Fplayer%2FF%2F046618-011_PLUS7-F%2FALL%2FALL.json&lang=fr_FR&config=arte_tvguide&rendering_place=http://www.arte.tv/guide/fr/046618-011/silex-and-the-city

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

	<?xml version="1.0" encoding="UTF-8"?>

	<opml version="1.0">
	<head>
	<title>French blogs</title>
	</head>
	<body>
	<outline text="Actualitiés" title="Actualitiés">
	<outline type="rss" text="Le Monde.fr - Actualité à la Une" title="Le Monde.fr - Actualité à la Une" xmlUrl="http://www.lemonde.fr/rss/sequence/0,2-3208,1-0,0.xml" htmlUrl="http://www.lemonde.fr/rss/une.xml"/>
	<outline type="rss" text="LE FIGARO - Le Figaro - Actualité en direct et informations en continu" title="LE FIGARO - Le Figaro - Actualité en direct et informations en continu" xmlUrl="http://www.lefigaro.fr/rss/figaro_une.xml" htmlUrl="http://www.lefigaro.fr/"/>

	package pong.functional

	sealed trait Event

	sealed trait Action
	object Action {
	case object MoveUp extends Action
	case object MoveDown extends Action
	case object ShootMissile extends Action
	}

	// clang -framework Foundation -fobjc-arc -O3 test.m

	#import <Foundation/Foundation.h>


	@interface Slice : NSObject
	@property NSInteger start;
	@property NSInteger length;
	@end
	@implementation Slice

	(defrecord Tree [left elm right])

	(defprotocol Monoid
	(append [a b] )
	(identity [a] ))

	(defprotocol Foldable
	(foldl [l f i])
	(mfirst [l]))

	trait FlightStatus
	trait Flying extends FlightStatus
	trait Landed extends FlightStatus

	case class Plane[Status <: FlightStatus]()

	def land(p:Plane[Flying])=Plane[Landed]()
	def takeOff(p:Plane[Landed])= Plane[Flying]()

	val plane = new Plane[Landed]()

	# From http://garmoncheg.blogspot.com/2012/06/pretty-git-log.html
	git config --global alias.lg "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --"