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@zhengjia
zhengjia / capybara cheat sheet
Created June 7, 2010 01:35
capybara cheat sheet
=Navigating=
visit('/projects')
visit(post_comments_path(post))
=Clicking links and buttons=
click_link('id-of-link')
click_link('Link Text')
click_button('Save')
click('Link Text') # Click either a link or a button
click('Button Value')
@justjohn
justjohn / jquery-mobile-red-buttons.css
Created July 1, 2011 04:03
Red button CSS for JQuery Mobile
/* Red button theme for JQuery Mobile
* - Use data-theme="r" for red versions of the default JQuery Mobile Buttons.
******************************************************************************************/
.ui-btn-up-r {
border: 1px solid #721414;
background: #AB2525;
font-weight: bold;
color: #fff;
text-shadow: 0 -1px 1px #000;
@nateps
nateps / gist:1172490
Created August 26, 2011 01:38
Hide the address bar in a fullscreen iPhone or Android web app
<!DOCTYPE html>
<meta charset=utf-8>
<meta name=viewport content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name=apple-mobile-web-app-capable content=yes>
<meta name=apple-mobile-web-app-status-bar-style content=black>
<title>Test fullscreen</title>
<style>
html, body {
margin: 0;
padding: 0;
@spicycode
spicycode / tmux.conf
Created September 20, 2011 16:43
The best and greatest tmux.conf ever
# 0 is too far from ` ;)
set -g base-index 1
# Automatically set window title
set-window-option -g automatic-rename on
set-option -g set-titles on
#set -g default-terminal screen-256color
set -g status-keys vi
set -g history-limit 10000
@jboner
jboner / latency.txt
Last active June 29, 2024 19:54
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active June 29, 2024 08:12
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@emdeesee
emdeesee / codec.clj
Created October 3, 2012 14:52
Encode and decode "binary" strings with Clojure
(use '[clojure.string :only [trim replace]]
'[clojure.pprint :only [cl-format] :rename {cl-format format}])
(defn- unspace [s]
(trim (replace s " " "")))
(defn decode [bitstring]
"\"01100110 01101111 01101111\" -> \"foo\"
Whitespace in the input string is ignored."
@cstrahan
cstrahan / scala.rb
Created October 23, 2012 14:20
Install Scala on OSX
# to install the latest stable version:
brew install scala --with-docs
# to install scala-2.10.0-RC1:
brew install https://raw.github.com/gist/3939012/scala.rb --with-docs
# to switch versions (from https://github.com/mxcl/homebrew/wiki/External-Commands):
brew switch scala 2.9.2
brew switch scala 2.10.0-RC1
@6D65
6D65 / latency.markdown
Created December 26, 2012 12:09 — forked from hellerbarde/latency.markdown

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

@dergachev
dergachev / GIF-Screencast-OSX.md
Last active June 5, 2024 22:16
OS X Screencast to animated GIF

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Screencapture GIF

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application: