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He Xudong chucai

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@chucai
chucai / Hacker_News_Ranking_Algorithm.sql
Created Jul 4, 2016 — forked from ChiChou/Hacker_News_Ranking_Algorithm.sql
Hacker News 排名算法的MYSQL函数实现
View Hacker_News_Ranking_Algorithm.sql
-- (p - 1) / (t + 2)^1.5
CREATE FUNCTION SP_POINTS(P SMALLINT(5), CREATED TIMESTAMP)
RETURNS TINYINT(3)
RETURN (P - 1) / POW(TIMESTAMPDIFF(HOUR, CREATED, NOW()) + 2, 1.5);
@chucai
chucai / download.rb
Created Nov 25, 2015 — forked from jonforums/download.rb
Ruby HTTP/HTTPS/FTP file downloader
View download.rb
#!/usr/bin/env ruby
# An HTTP/HTTPS/FTP file downloader library/CLI based upon MiniPortile's
# HTTP implementation.
#
# Author: Jon Maken
# License: 3-clause BSD
# Revision: 2012-03-25 23:01:19 -0600
require 'net/http'
require 'net/https' if RUBY_VERSION < '1.9'
View mina
# config/deploy.rb
require 'mina/bundler'
require 'mina/rails'
require 'mina/git'
require 'mina/rvm'
# ter_mode 这个要设置,不然在 mac 下输密码有问题
set :term_mode, nil
set :rvm_path, '/usr/local/rvm/bin/rvm'
View .pryrc
## Useful Collections
def a_array
(1..6).to_a
end
def a_hash
{hello: "world", free: "of charge"}
end
@chucai
chucai / expression.rb
Created Jul 31, 2014
expression calculate
View expression.rb
# Given an expression: ( 2 + ( ( 4 + 6 ) * (9 * 2) - ( 5 - 1)))
# 1. Write a program calculate the given expression
# 2. Do not simply use “eval” directly
# 3. Need unit test
# 4. Submit your question using gist
#
# Bouns:
# ( 2 + ( ( 4 + 6 ) * sqrt(5)) / 2 )
#
require "pry"
@chucai
chucai / css_resources.md
Created Jun 13, 2014 — forked from jookyboi/css_resources.md
CSS libraries and guides to bring some order to the chaos.
View css_resources.md

Libraries

  • 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.

Guides

@chucai
chucai / python_resources.md
Created Jun 13, 2014 — forked from jookyboi/python_resources.md
Python-related modules and guides.
View python_resources.md

Packages

  • 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.

Guides

@chucai
chucai / rails_resources.md
Created Jun 13, 2014 — forked from jookyboi/rails_resources.md
Rails-related Gems and guides to accelerate your web project.
View rails_resources.md

Gems

  • 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.
  • [factory_girl](h
@chucai
chucai / javascript_resources.md
Created Jun 13, 2014 — forked from jookyboi/javascript_resources.md
Here are a set of libraries, plugins and guides which may be useful to your Javascript coding.
View javascript_resources.md

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
@chucai
chucai / 0_reuse_code.js
Created Jun 13, 2014
Here are some things you can do with Gists in GistBox.
View 0_reuse_code.js
// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console
You can’t perform that action at this time.