Mark Bennett MarkBennett

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

Intro

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.

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

Snow in canvas land

Other people's code is awful, and your own code from months previous counts as someone else's. With this and the festive spirit in mind, I dug up a canvas snow demo I made two years ago to see how bad my code really was.

Turns out the performance landscape has changed quite a bit, but after applying a couple of workarounds, best practices, and memory management, I got the demo running smoother than it ever did.

Ugh, I can't believe I just wrote "performance landscape". Anyway...

	var gulp = require('gulp');
	var sourcemaps = require('gulp-sourcemaps');
	var source = require('vinyl-source-stream');
	var buffer = require('vinyl-buffer');
	var browserify = require('browserify');
	var watchify = require('watchify');
	var babel = require('babelify');

	function compile(watch) {
	var bundler = watchify(browserify('./src/index.js', { debug: true }).transform(babel));

	const CANCEL = Symbol();

	class CancellationToken {

	constructor() {
	this.cancelled = false;
	}

	throwIfCancelled() {
	if (this.isCancelled()) {

	# Signal catching
	def shut_down
	puts "\nShutting down gracefully..."
	sleep 1
	end

	puts "I have PID #{Process.pid}"

	# Trap ^C
	Signal.trap("INT") {

	{
	{I have\|I've} been {surfing\|browsing} online more than {three\|3\|2\|4} hours today, yet I never found any interesting article like yours. {It's\|It
	is} pretty worth enough for me. {In my opinion\|Personally\|In my view}, if all {webmasters\|site owners\|website owners\|web owners} and bloggers made good content as
	you did, the {internet\|net\|web} will be {much more\|a lot more}
	useful than ever before.\|
	I {couldn't\|could not} {resist\|refrain from} commenting. {Very well\|Perfectly\|Well\|Exceptionally well} written!\|
	{I will\|I'll} {right away\|immediately} {take hold of\|grab\|clutch\|grasp\|seize\|snatch}
	your {rss\|rss feed} as I {can not\|can't} {in finding\|find\|to find} your {email\|e-mail} subscription {link\|hyperlink} or {newsletter\|e-newsletter} service. Do {you have\|you've} any?
	{Please\|Kindly} {allow\|permit\|let} me {realize\|recognize\|understand\|recognise\|know} {so that\|in order that} I {may just\|may\|could} subscribe.
	Thanks.\|

	#!/bin/bash -e

	export RBENV_ROOT=/usr/local/rbenv
	export PATH=/usr/local/rbenv/shims:/usr/local/rbenv/bin:/usr/local/bin:"$PATH"

	APP="<%= @options[:app].application.name %>"
	APP_PATH="<%= @options[:app].path %>"
	RAILS_ENV="<%= @options[:rails_env] %>"
	UNICORN_CONFIG="/etc/unicorn/${APP}.rb"
	CUR_PID_FILE="${APP_PATH}/shared/pids/unicorn.pid"