Jesper Rønn-Jensen jesperronn

The introduction to Reactive Programming you've been missing

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.

This was working on Vagrant 1.4.3 (Mac).

#HOST#

File: ~/.ssh/config

Host vagrant.*
ForwardAgent yes

File: Vagrantfile

Update May 2017

Eric Bidelman has documented some of the common workflows possible with headless Chrome over in https://developers.google.com/web/updates/2017/04/headless-chrome.

Update

If you're looking at this in 2016 and beyond, I strongly recommend investigating real headless Chrome: https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md

Windows and Mac users might find using Justin Ribeiro's Docker setup useful here while full support for these platforms is being worked out.

#Overview drip is an awesome command line tool that can be used to dramatically lower perceived JVM startup time. It does this by preloading an entirely new JVM process\instance and allowing you to simply use the preloaded environment. This has extraordinary results with jruby.

We reduced time to run rake environment from 13 seconds to a mere 3.5 seconds. This is actually at or near MRI 1.9.3p327 (with falcon patch) speeds!

Adding a few addition jruby options will reduce startup time even further (down to 1.69 seconds).

#Install Drip Install drip if you haven't already (see https://github.com/flatland/drip)

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

	#!/usr/bin/ruby
	#
	# release notes script
	# takes two git tags and prints any changes between them
	#
	# usage:
	# ./releasenotes.sh [from] [to] [releasename]
	#
	# with [from] and [to] being git tags

	<!DOCTYPE html>
	<html>
	<body>
	<div id="src">Source here...</div>
	<div id="editor" contenteditable="true">
	<p>Place MS-Word text here...</p>
	</div>
	</body>
	</html>

	module FactoryGirlHelper

	def find_or_create(*args)
	name = args.shift
	clazz = nil

	# convert from underscores String to camelcase Class
	if name.is_a? Hash
	name = name.first[0]
	clazz = name.first[1].to_s.camelize.constantize

	#!/bin/bash

	function usage {
	echo "USAGE: git merge-svn <from> [<to>]"
	echo ""
	echo " from The branch name to be merged FROM"
	echo " to Optional branch name to be merged onto. Default: HEAD"
	echo ""
	}

	#!/bin/bash

	# works with a file called VERSION in the current directory,
	# the contents of which should be a semantic version number
	# such as "1.2.3"

	# this script will display the current version, automatically
	# suggest a "minor" version update, and ask for input to use
	# the suggestion, or a newly entered value.