Paul Osborne paulosborne

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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.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.

Follow these steps to install graphite on OS X Mavericks.

Prerequisites

Homebrew
Python 2.7
Git

Install dependencies

Install Cairo and friends

This tutorial uses the "Sample hapi.js REST API" project.

Take a look at: https://github.com/agendor/sample-hapi-rest-api/

##Topics

Introduction
Installing Node.js
Installing MySQL
Setting-up the project

Practical Implications of Removing `module x from "y"`

Background

According to this gist, the modules break-out session at TC39 (a subset of the larger committee) decided to remove the

module x from "y";

	/**
	Code copyright Dustin Diaz and Ross Harmes, Pro JavaScript Design Patterns.
	**/

	// Constructor.
	var Interface = function (name, methods) {
	if (arguments.length != 2) {
	throw new Error("Interface constructor called with " + arguments.length + "arguments, but expected exactly 2.");
	}
	this.name = name;

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>example crossroads + hasher</title>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	</head>
	<body>
	<div id="wrapper">
	<ul>

	Backbone.BaseCollection = Backbone.Collection.extend({
	// Holds id of locally deleted items we ignore if we
	// 'freshen' the collection and changes haven't propagated yet.
	_localDeletedIds: [],
	// Take an array of raw objects
	// If the ID matches a model in the collection, set that model
	// If the ID is not found in the collection, add it
	// If a model in the collection is no longer available, remove it
	//
	// Keeps local changes, in case we've added things in the meantime.

	# Installing graphite dependencies
	apt-get install -y python2.6 python-pip python-cairo python-django python-django-tagging
	apt-get install -y libapache2-mod-wsgi python-twisted python-memcache python-pysqlite2 python-simplejson
	pip install whisper
	pip install carbon
	pip install graphite-web

	# Setup a vhost by grabbing the example the graphite team released on their repo.
	# In this file, you'll provide the url used to access to your Graphite dashboard
	wget https://raw.github.com/tmm1/graphite/master/examples/example-graphite-vhost.conf -O /etc/apache2/sites-available/graphite

	var _missing= function(data){ return React.DOM.pre(null, "Route not found: "+ data.route) },
	_router= null,
	_started= false,
	_nextId= 1;

	function handleRouteChange(container, component) {
	var routeParams= Array.prototype.slice.call( arguments, 1 )
	React.renderComponent(
	component({ routeParams:routeParams }, null),
	container