Cameron Yick hydrosquall

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

CartoDB, Big Data and the Internet of Things

Creating an account

Set you up with accounts here. This will give you a free upgrade with double the storage space and some neat features!

Creating your first map

Making maps that explore data

To get used to work with CartoDB we are first going to make a map that will help us explore crime data in Boston.

What kind of iteration to use when in JavaScript

For loops

for (var i = 0; i < array.length; i++) {
}

Code has to run in old versions of IE.

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.

Working Effectively with Legacy Code

Notes by Jeremy W. Sherman, October 2013, based on:

Feathers, Michael. Working Effectively with Legacy Code. Sixth printing, July 2007.

Foreword:

Software systems degrade into a mess.
Requirements ALWAYS change.
Your goal as a software developer: Create designs that tolerate change.

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!

	The Yale VPN uses Cisco AnyConnect.

	If Cisco's Linux client works for you, congratulations.
	If, like me, the official client leaves you stranded, then you need to install
	OpenConnect and (assuming you are using Network Manager) the appropriate add-on for the NM applet.

	On a Debian-based system, you can type the following command:

	$ sudo apt-get install openconnect network-manager-openconnect network-manager-openconnect-gnome

	import asyncio
	import aiohttp
	import bs4
	import tqdm


	@asyncio.coroutine
	def get(args, *kwargs):
	response = yield from aiohttp.request('GET', args, *kwargs)
	return (yield from response.read_and_close(decode=True))

	This is free and unencumbered software released into the public domain.

	Anyone is free to copy, modify, publish, use, compile, sell, or
	distribute this software, either in source code form or as a compiled
	binary, for any purpose, commercial or non-commercial, and by any
	means.

	In jurisdictions that recognize copyright laws, the author or authors
	of this software dedicate any and all copyright interest in the
	software to the public domain. We make this dedication for the benefit