paulirish

What forces layout / reflow

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.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

addyosmani

{
    "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",

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

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.

---

buzzdecafe

(function(global) {

    global.Functor = function(conf) {
        Functor.types[conf.key] = {
            obj: conf.obj,
            fmap: conf.fmap
        };
    };
    
    Functor.types = {};

awidegreen

Introduction

• C-a == Ctrl-a
• M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

fallwith

$> 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`

igstan

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) ->