He Xudong chucai

Libraries

jQuery - The de-facto library for the modern age. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
Backbone - Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
AngularJS - Conventions based MVC framework for HTML5 apps.
Underscore - Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects.
lawnchair - Key/value store adapter for indexdb, localStorage

Bundler - Bundler maintains a consistent environment for ruby applications. It tracks an application's code and the rubygems it needs to run, so that an application will always have the exact gems (and versions) that it needs to run.
rabl - General ruby templating with json, bson, xml, plist and msgpack support
Thin - Very fast and lightweight Ruby web server
Unicorn - Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels.
SimpleCov - SimpleCov is a code coverage analysis tool for Ruby 1.9.
Zeus - Zeus preloads your Rails app so that your normal development tasks such as console, server, generate, and specs/tests take less than one second.
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lxml - Pythonic binding for the C libraries libxml2 and libxslt.
boto - Python interface to Amazon Web Services
Django - Django is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
Fabric - Library and command-line tool for streamlining the use of SSH for application deployment or systems administration task.
PyMongo - Tools for working with MongoDB, and is the recommended way to work with MongoDB from Python.
Celery - Task queue to distribute work across threads or machines.
pytz - pytz brings the Olson tz database into Python. This library allows accurate and cross platform timezone calculations using Python 2.4 or higher.

960 Grid System - An effort to streamline web development workflow by providing commonly used dimensions, based on a width of 960 pixels. There are two variants: 12 and 16 columns, which can be used separately or in tandem.
Compass - Open source CSS Authoring Framework.
Bootstrap - Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
Font Awesome - The iconic font designed for Bootstrap.
Zurb Foundation - Framework for writing responsive web sites.
SASS - CSS extension language which allows variables, mixins and rules nesting.
Skeleton - Boilerplate for responsive, mobile-friendly development.

	# update application.rb
	# config.middleware.insert_before(ActionDispatch::Static, TracePoint::Middleware)
	class TracePoint
	class Middleware

	def initialize(app)
	@app = app
	end

	def call(env)

	require 'spec/support/grep_matcher'

	describe do
	disallow_presence_of pattern: "send(.*#",
	location: "app/",
	description: "Do not use dynamic method invocations",
	failure: "Please change dynamic method call to something more sane."
	end

	class SimpleLinearRegression
	def initialize(xs, ys)
	@xs, @ys = xs, ys
	if @xs.length != @ys.length
	raise "Unbalanced data. xs need to be same length as ys"
	end
	end

	def y_intercept
	mean(@ys) - (slope * mean(@xs))

	require 'active_record'

	ActiveRecord::Base.logger = Logger.new(STDERR)
	ActiveRecord::Base.colorize_logging = false # 注释掉，如果用 rails 4.0

	ActiveRecord::Base.establish_connection(
	:adapter => "sqlite3",
	:dbfile => ":memory:"
	)

	module Where
	class <<self
	attr_accessor :editor

	def is_proc(proc)
	source_location(proc)
	end

	def is_method(klass, method_name)
	source_location(klass.method(method_name))

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console