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Learn JavaScript concepts with the Chrome DevTools

Authored by Peter Rybin , Chrome DevTools team

In this short guide we'll review some new Chrome DevTools features for "function scope" and "internal properties" by exploring some base JavaScript language concepts.

Closures

Let's start with closures – one of the most famous things in JS. A closure is a function, that uses variables from outside. See an example:

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 = git@github.com: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:

Ruby, RVM and Mountain Lion

Key problems

Mountain Lion (10.8) has three main difference compared to Lion (10.7):

XCode 4.4 does not install Command Line Tools by default
X11 isn't available anymore
The installed version of OpenSSL has some bugs

How to work around

Open Conference Expectations

This document lays out some baseline expectations between conference speakers and conference presenters. The general goal is to maximize the value the conference provides to its attendees and community and to let speakers know what they might reasonably expect from a conference.

We believe that all speakers should reasonably expect these things, not just speakers who are known to draw large crowds, because no one is a rockstar but more people should have the chance to be one. We believe that conferences are better -- and, dare we say, more diverse -- when the people speaking are not just the people who can afford to get themselves there, either because their company paid or they foot the bill themselves. Basically, this isn't a rock show rider, it's some ideas that should help get the voices of lesser known folks heard.

These expectations should serve as a starting point for discussion between speaker and organizer. They are not a list of demands; they are a list of rea

	(function() {

	var script,
	scripts = document.getElementsByTagName('script')[0];

	function load(url) {
	script = document.createElement('script');
	script.async = true;
	script.src = url;
	scripts.parentNode.insertBefore(script, scripts);

	gifify() {
	if [[ -n "$1" ]]; then
	if [[ $2 == '--good' ]]; then
	ffmpeg -i $1 -r 10 -vcodec png out-static-%05d.png
	time convert -verbose +dither -layers Optimize -resize 600x600\> out-static*.png GIF:- \| gifsicle --colors 128 --delay=5 --loop --optimize=3 --multifile - > $1.gif
	rm out-static*.png
	else
	ffmpeg -i $1 -s 600x400 -pix_fmt rgb24 -r 10 -f gif - \| gifsicle --optimize=3 --delay=3 > $1.gif
	fi
	else

	<?php

	namespace App;

	class UserStorage extends \Nette\Http\UserStorage
	{

	/** Log-out reason */
	const IDENTITY_CHANGED = 16;

	#!/usr/bin/env ruby
	Dir.chdir File.join(__FILE__, "../..")

	unless ENV['EDITOR']
	puts "No EDITOR found. Try:"
	puts "export EDITOR=vim"
	exit 1
	end

	unless ARGV.count == 2

	<?php

	/**
	* @author Filip Procházka <filip@prochazka.su>
	*/
	abstract class BasePresenter extends Nette\Application\UI\Presenter
	{

	/**
	* @var \Img\ImagePipe

	[alias]
	changelog = "!git tag -l v* -n20 \| sed -n 'H;${;g;s/\\n[^v]/\\x00/g;p}' \| sort -rV \| tr \\\\000 \\\\n \| less"