Linjie Ding pyrocat101

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

Following proposal by @littledan

THIS NO LONGER MATCHES THE PROPOSED API AND SHOULD NOT BE USED

Just proof-of-concept. Do not use in production.

Caveats:

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.

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:

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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.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

	'use strict';

	var React = require('react'),
	classSet = require('react/lib/cx'),
	_ = require('underscore');

	var ClassNameMixin = {
	propTypes: {
	className: React.PropTypes.string,
	context: React.PropTypes.string

	{:user {:dependencies [[org.clojure/tools.namespace "0.2.3"]
	[spyscope "0.1.3"]
	[criterium "0.4.1"]]
	:injections [(require '(clojure.tools.namespace repl find))
	; try/catch to workaround an issue where `lein repl` outside a project dir
	; will not load reader literal definitions correctly:
	(try (require 'spyscope.core)
	(catch RuntimeException e))]
	:plugins [[lein-pprint "1.1.1"]
	[lein-beanstalk "0.2.6"]

	// installed Clojure packages:
	//
	// * BracketHighlighter
	// * lispindent
	// * SublimeREPL
	// * sublime-paredit

	{
	"word_separators": "/\\()\"',;!@$%^&\|+=[]{}`~?",
	"paredit_enabled": true,

	define([], function () {

	return function HypotheticalHelperMethod() {
	doSomeOtherStuff();
	}

	});


	define(["helperMethod"], function (helperMethod) {

	sudo cp /usr/local/opt/nginx/*.plist /Library/LaunchDaemons
	sudo launchctl load -w /Library/LaunchDaemons/homebrew.mxcl.nginx.plist