- C-a == Ctrl-a
- M-a == Alt-a
:q close
:w write/saves
:wa[!] write/save all windows [force]
:wq write/save and close
push = (element) -> (stack) -> | |
newStack = [element].concat stack | |
{value: element, stack: newStack} | |
pop = (stack) -> | |
element = stack[0] | |
newStack = stack.slice 1 | |
{value: element, stack: newStack} | |
bind = (stackOperation, continuation) -> (stack) -> |
$> launchctl unload -w ~/Library/LaunchAgents/com.mysql.mysqld.plist | |
$> /usr/local/Cellar/mysql/5.5.9/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.5.9 --datadir=/usr/local/Cellar/mysql/5.5.9/data --plugin-dir=/usr/local/Cellar/mysql/5.5.9/lib/plugin --log-error=/usr/local/Cellar/mysql/5.5.9/data/errors.err --pid-file=/usr/local/Cellar/mysql/5.5.9/data/pidfile.pid --skip-grant-tables | |
$> mysql | |
mysql> UPDATE mysql.user SET Password=PASSWORD('root_password') WHERE User='root'; | |
mysql> FLUSH PRIVILEGES; | |
$> kill `cat /usr/local/Cellar/mysql/5.5.9/data/pidfile.pid` |
(function(global) { | |
global.Functor = function(conf) { | |
Functor.types[conf.key] = { | |
obj: conf.obj, | |
fmap: conf.fmap | |
}; | |
}; | |
Functor.types = {}; |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
{ | |
"name": "my-app", | |
"version": "1.0.0", | |
"description": "My test app", | |
"main": "src/js/index.js", | |
"scripts": { | |
"jshint:dist": "jshint src/js/*.js", | |
"jshint": "npm run jshint:dist", | |
"jscs": "jscs src/*.js", | |
"browserify": "browserify -s Validating -o ./dist/js/build.js ./lib/index.js", |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent