A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.
One-line version to paste in your DevTools
Use $$
if your browser aliases it:
~ 108 byte version
/** | |
* impress.js | |
* | |
* impress.js is a presentation tool based on the power of CSS3 transforms and transitions | |
* in modern browsers and inspired by the idea behind prezi.com. | |
* | |
* | |
* Copyright 2011-2012 Bartek Szopka (@bartaz) | |
* | |
* Released under the MIT and GPL Licenses. |
#!/bin/bash | |
# This is a wrapper for adb. If there are multiple devices / emulators, this script will prompt for which device to use | |
# Then it'll pass whatever commands to that specific device or emulator. | |
# Run adb devices once, in event adb hasn't been started yet | |
BLAH=$(adb devices) | |
# Grab the IDs of all the connected devices / emulators | |
IDS=($(adb devices | sed '1,1d' | sed '$d' | cut -f 1 | sort)) |
##ss-redir 的 iptables 配置(透明代理)
透明代理指对客户端透明,客户端不需要进行任何设置就使用了网管设置的代理规则
创建 /etc/ss-redir.json 本地监听 7777
运行ss-redir -v -c /etc/ss-redir.json
iptables -t nat -N SHADOWSOCKS
# 在 nat 表中创建新链
iptables -t nat -A SHADOWSOCKS -p tcp --dport 23596 -j RETURN
# 23596 是 ss 代理服务器的端口,即远程 shadowsocks 服务器提供服务的端口,如果你有多个 ip 可用,但端口一致,就设置这个
" copy all this into a vim buffer, save it, then... | |
" source the file by typing :so % | |
" Now the vim buffer acts like a specialized application for mastering vim | |
" There are two queues, Study and Known. Depending how confident you feel | |
" about the item you are currently learning, you can move it down several | |
" positions, all the way to the end of the Study queue, or to the Known | |
" queue. | |
" type ,, (that's comma comma) |
(Also see [remarkable][], the markdown parser created by the author of this cheatsheet)
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> |
# Enable syntax-highlighting in less. | |
# Last tested on CentOS 6.3. | |
# | |
# First, add these two lines to ~/.bashrc | |
# export LESSOPEN="| /usr/bin/src-hilite-lesspipe.sh %s" | |
# export LESS=" -R " | |
sudo yum -y install boost boost-devel ctags | |
wget http://springdale.math.ias.edu/data/puias/unsupported/6/x86_64/source-highlight-3.1.6-3.puias6.x86_64.rpm |
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 |
// ==UserScript== | |
// @name Click more for toggle | |
// @namespace gotgit | |
// @description Add a toogle effect at the location where anchor with a click-more css. | |
// @include http://www.worldhello.net/gotgit/demo* | |
// @include http://gotgit.github.com/gotgit/demo* | |
// @include http://www.ossxp.com/doc/gotgit/demo* | |
// @require http://code.jquery.com/jquery-1.6.2.min.js | |
// ==/UserScript== |