Graham Faulkner pixelandpen

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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.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

Frontend Development

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How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

Using Saxon with Cocoon XSLT for DSpace

Create an xconf file at [dspace-src]/dspace/modules/xmlui/src/main/resources/META-INF/cocoon/avalon/cocoon-core-saxon-xslt.xconf and add the following lines:

<?xml version="1.0" encoding="UTF-8"?>
<components>
  <component role="org.apache.excalibur.xml.xslt.XSLTProcessor/saxon"
 class="org.apache.cocoon.components.xslt.TraxProcessor"&gt;

	#301 Redirects for .htaccess

	#Redirect a single page:
	Redirect 301 /pagename.php http://www.domain.com/pagename.html

	#Redirect an entire site:
	Redirect 301 / http://www.domain.com/

	#Redirect an entire site to a sub folder
	Redirect 301 / http://www.domain.com/subfolder/

	input {
	tcp {
	type => "linux-syslog"
	port => 3333
	}

	file {
	type => "linux-syslog"
	path => [ "/var/log/auth.log" ]
	}

	var w = new EventSource("https://wikipedia-edits.herokuapp.com/sse");
	w.onmessage = function(event) {
	change = JSON.parse(event.data);
	console.log(change);
	}

	# alias to edit commit messages without using rebase interactive
	# example: git reword commithash message
	reword = "!f() {\n GIT_SEQUENCE_EDITOR=\"sed -i 1s/^pick/reword/\" GIT_EDITOR=\"printf \\\"%s\\n\\\" \\\"$2\\\" >\" git rebase -i \"$1^\";\n git push -f;\n}; f"

	# aliases to change a git repo from private to public, and public to private using gh-cli
	alias gitpublic="gh repo edit --accept-visibility-change-consequences --visibility public"
	alias gitprivate="gh repo edit --accept-visibility-change-consequences --visibility private"

	# delete all your repos using gh-cli (please do not run this unless you want to delete all your repos)
	gh repo list --limit 300 --json url -q '.[].url' \| xargs -n1 gh repo delete --yes

	# dchud's 20 minute guide to installing DSpace 4.0 from the binary release
	# on a clean ubuntu 12.04 server running on aws ec2 or where-have-you
	#
	# this guide assumes you are already comfortable with *nix system administration
	#
	# this guide leaves out anything to do with the many details of configuring
	# DSpace itself; it just gets you to the "it's up and running" step
	#
	# to start: get your clean ubuntu-12.04 system up to date
	$ sudo apt-get update && sudo apt-get upgrade

	#!/usr/bin/env python
	# Quick and dirty demonstration of CVE-2014-0160 by
	# Jared Stafford ([email protected])
	# Modified so that it finds cookies

	import sys
	import struct
	import socket
	import time
	import select