Oleksii Levzhynskyi oleksiilevzhynskyi

#Quiz:

What’s the result of:

 function A() {}
 A.prototype.name = 'A';

 var a = new A();
 var b = new A();

#Quiz:

What’s the result of:

 console.log(f());
 function f() {
     return 1;
 }

Answers:

Answer this questions to check you general understanding of the topic:

Quiz:

How do you write a conditional statement for executing some code if i is equal to 5?
- if (i==5)
- if i=5
- if i=5 then
- if i==5 then
What is an array?

Patched ruby 1.9.3-p125 for 30% faster rails boot

What is?

This script installs a patched version of ruby 1.9.3-p125 with patches to make ruby-debug work again (#47) and boot-time performance improvements (#66 and #68), and runtime performance improvements (#83 and #84). It also includes the new backported GC from ruby-trunk.

Huge thanks to funny-falcon for the performance patches.

Set up Gemfile

# in Gemfile

gem 'rails', '3.1.1'

gem 'haml'
gem 'haml-rails', :group => :development


	#
	# A CORS (Cross-Origin Resouce Sharing) config for nginx
	#
	# == Purpose
	#
	# This nginx configuration enables CORS requests in the following way:
	# - enables CORS just for origins on a whitelist specified by a regular expression
	# - CORS preflight request (OPTIONS) are responded immediately
	# - Access-Control-Allow-Credentials=true for GET and POST requests

	# Launch Pry with access to the entire Rails stack.
	# If you have Pry in your Gemfile, you can pass: ./script/console --irb=pry instead.
	# If you don't, you can load it through the lines below :)
	rails = File.join Dir.getwd, 'config', 'environment.rb'

	if File.exist?(rails) && ENV['SKIP_RAILS'].nil?
	require rails

	if Rails.version[0..0] == "2"
	require 'console_app'

	def screen_shot_and_save_page
	require 'capybara/util/save_and_open_page'
	path = "/#{Time.now.strftime('%Y-%m-%d-%H-%M-%S')}"
	Capybara.save_page body, "#{path}.html"
	page.driver.render Rails.root.join "#{Capybara.save_and_open_page_path}" "#{path}.png"
	end

	begin
	After do \|scenario\|
	screen_shot_and_save_page if scenario.failed?

	(function($) {
	$.cookieEnabled = function () {
	var key = 'testCookieEnabled';
	var value = '1';
	$.cookie(key, value, { path: '/' });
	return $.cookie(key) == value;
	};

	$(document).ready(function(){
	if( !$.cookieEnabled() ) {

	sudo apt-get install unzip;
	wget -O /tmp/chromedriver.zip http://chromedriver.googlecode.com/files/chromedriver_linux64_19.0.1068.0.zip && sudo unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/;