Joe Martinez capitalist

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JavaScript Class Syntax

Let's build a JavaScript class syntax from first principles. For the purpose of this exercise, let's assume that the purpose of the class syntax is to add much-needed sugar to common JavaScript idioms.

Let's start with how JavaScript "classes" work today:

// this is a constructor
Person = function() {
 this // `this` is a new instance of Person

	function GM_getValue (key) {
	var value = localStorage.getItem('GM_'.key);
	if ('undefined' == typeof(value)) {
	return;
	}
	return value;
	}

	function GM_setValue (key, value) {
	localStorage.setItem('GM_'.key, value);

	# autoload concerns
	module YourApp
	class Application < Rails::Application
	config.autoload_paths += %W(
	#{config.root}/app/controllers/concerns
	#{config.root}/app/models/concerns
	)
	end
	end

	doctype html
	/[if lt IE 7]
	\| <html class="ie6">
	/[if IE 7]
	\| <html class="ie7">
	/[if IE 8]
	\| <html class="ie8">
	/[if IE 9]
	\| <html class="ie9">
	\| <!--[if (gte IE 9)\|!(IE)]<!--> <html> <!--<![endif]-->

	# build scopes for owners, producers, and viewers. each scope can be used
	# with one, or more, users. for example:
	#
	# Organization.with_owners(jane, john)
	#
	{
	:owner => %w'owner',
	:producer => %w'owner producer',
	:viewer => %w'owner producer viewer'
	}.each do \|name, roles\|

	## DNS

	@dns = Fog::DNS.new(:provider => 'Linode', :linode_api_key => LINODE_KEY)
	if @zone = @dns.zones.all.find { \|z\| z.domain == ZONE }
	puts "Found zone #{@zone.inspect}"
	else
	@zone = @dns.zones.create(:domain => ZONE, :email => ZONE_EMAIL)
	puts "Creating zone #{@zone.inspect}"
	end

	##
	## with raw object
	##

	# create a new object
	o = Object.new

	# define methods on the object (precisely, the object's singleton)
	class << o
	def hello(thing)

	require 'chronic'

	class PassengerProcess
	attr_accessor :pid, :uptime

	def initialize(passenger_status_line)
	values = passenger_status_line.match(/PID:\s(\d).Uptime:\s(.)$/)
	@pid = values[1].to_i
	@uptime = values[2]
	end