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Larry Zhao larryzhao

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@staltz
staltz / introrx.md
Last active October 26, 2025 03:06
The introduction to Reactive Programming you've been missing
@jtomaszewski
jtomaszewski / god.cap.rb
Last active March 7, 2022 01:21
God tasks for Capistrano v3
# Thanks to http://makandracards.com/makandra/1431-resque-+-god-+-capistrano for an idea and v2 version.
namespace :god do
def god_is_running
capture(:bundle, "exec god status > /dev/null 2>&1 || echo 'god not running'") != 'god not running'
end
# Must be executed within SSHKit context
def config_file
"#{release_path}/config/god.rb"
@dustinlarimer
dustinlarimer / index.html
Last active December 30, 2015 16:19
Day/Hour PageView Heatmap for Keen.io
<!DOCTYPE html>
<html>
<head>
<title>PageView Grid</title>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.2/underscore-min.js"></script>
<script>
var Keen=Keen||{configure:function(e){this._cf=e},addEvent:function(e,t,n,i){this._eq=this._eq||[],this._eq.push([e,t,n,i])},setGlobalProperties:function(e){this._gp=e},onChartsReady:function(e){this._ocrq=this._ocrq||[],this._ocrq.push(e)}};(function(){var e=document.createElement("script");e.type="text/javascript",e.async=!0,e.src=("https:"==document.location.protocol?"https://":"http://")+"dc8na2hxrj29i.cloudfront.net/code/keen-2.1.0-min.js";var t=document.getElementsByTagName("script")[0];t.parentNode.insertBefore(e,t)})();
Keen.configure({
projectId: "<your-projectId>",
@maccman
maccman / canvas.physics.coffee
Created April 11, 2013 02:52
A canvas physics engine in 160 lines of CoffeeScript.
class Point
constructor: (@x = 0, @y = 0) ->
if isNaN(@x) or isNaN(@y)
throw new Error('Invalid coords')
add: (point) ->
@x += point.x
@y += point.y
subtract: (point) ->
@nightire
nightire / Changes in Rails 4_1.md
Last active September 28, 2025 09:55
拥抱 Rails 4 —— 详述 Rails 4 的新变化

Routes

小心地使用 Match（Rails 3 已实现）

Rails 3 提供了 match 方法供我们自定义 routes，然而我们要小心使用它以避免“跨站脚本攻击”（XSS Attack）。比如像这样的 routes：

注：（r3 代表 Rails 3，r4 代表 Rails 4）

# routes.rb
@bachue
bachue / class_level_instance_and_class_variable_test1.rb
Last active December 15, 2015 06:09
class A
class << self
def add(ele)
@array ||= []
@array << ele
end
def array
@array ||= []
end
@rwjblue
rwjblue / output.txt
Created March 2, 2013 16:43
Test Ruby's ability to release memory back to system.
Ruby 1.9.3-p392
===========================================================
All memory used before 1st run - 7 MB
Memory consumed by 1st run of eat_up_memory - 445 MB
All memory used before 2nd run - 452 MB
Memory consumed by 2nd run of eat_up_memory - 20 MB
All memory used before 3rd run - 472 MB
Memory consumed by 3rd run of eat_up_memory - 5 MB
Memory used before explicit GC.start - 478 MB
Memory used after explicit GC.start - 284 MB
@sdrew
sdrew / HTTP-Status-Codes.md
Last active May 19, 2017 13:30
Mapping of HTTP Status Codes to Symbols in Rails, as found here: http://www.codyfauser.com/2008/7/4/rails-http-status-code-to-symbol-mapping

1xx Informational

Status Code Status Message Symbol
100 Continue :continue
101 Switching Protocols :switching_protocols
102 Processing :processing

2xx Success

@SlexAxton
SlexAxton / .zshrc
Last active June 6, 2025 19:18
My gif workflow
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
@jakeonrails
jakeonrails / Ruby Notepad Bookmarklet
Created January 29, 2013 18:08
This bookmarklet gives you a code editor in your browser with a single click.
data:text/html, <style type="text/css">#e{position:absolute;top:0;right:0;bottom:0;left:0;}</style><div id="e"></div><script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script><script>var e=ace.edit("e");e.setTheme("ace/theme/monokai");e.getSession().setMode("ace/mode/ruby");</script>