Aurélien Léger Dexyne

Conventions

A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
lengths are in any unit (ex: pixels)
code snippets are in JavaScript

Degrees to radians

angleRad = angleDeg * Math.PI / 180;

List moved

Please use https://github.com/bf4/learning to fork and pull changes.

#Introduction

Developing Chrome Extensions is REALLY fun if you are a Front End engineer. If you, however, struggle with visualizing the architecture of an application, then developing a Chrome Extension is going to bite your butt multiple times due the amount of excessive components the extension works with. Here are some pointers in how to start, what problems I encounter and how to avoid them.

Note: I'm not covering chrome package apps, which although similar, work in a different way. I also won't cover the page options api neither the new brand event pages. What I explain covers most basic chrome applications and should be enough to get you started.

agnoster.zsh-theme

A ZSH theme optimized for people who use:

Solarized
Git
Unicode-compatible fonts and terminals (I use iTerm2 + Menlo)

For Mac users, I highly recommend iTerm 2 + Solarized Dark

	##
	# Creates an alias called "git hist" that outputs a nicely formatted git log.
	# Usage is just like "git log"
	# Examples:
	# git hist
	# git hist -5
	# git hist <branch_name>
	# git hist <tag_name> -10
	##
	git config --global alias.hist "log --pretty=format:'%C(yellow)[%ad]%C(reset) %C(green)[%h]%C(reset) \| %C(red)%s %C(bold red){{%an}}%C(reset) %C(blue)%d%C(reset)' --graph --date=short"

	RSpec.configure do \|config\|
	config.before(:suite) do
	DatabaseCleaner.clean_with(:truncation)
	end

	config.before(:each) do
	DatabaseCleaner.strategy = :transaction
	end

	config.before(:each, js: true) do

	#!/bin/bash
	#
	# Install Postgres 9.2 on a clean Ubuntu 12.04

	"""
	LC_ALL issue
	comment out the AcceptEnv LANG LC_* line in the remote /etc/ssh/sshd_config file.
	sudo apt-get install language-pack-en-base
	sudo dpkg-reconfigure locales
	comment out the SendEnv LANG LC_* line in the local /etc/ssh/ssh_config file.

	namespace :db do
	namespace :enable do
	desc "enable hstore extension"
	task :hstore => [:environment, :load_config] do
	ActiveRecord::Base.connection.execute('CREATE EXTENSION IF NOT EXISTS hstore;')
	end
	end

	Rake::Task['db:schema:load'].enhance ['db:enable:hstore']
	end

	$stack, $draws = [], {}

	def method_missing *args
	return if args[0][/^to_/]
	$stack << args.map { \|a\| a or $stack.pop }
	$draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
	end

	class Array
	def +@

	<?php
	function it($m,$p){echo ($p?'✔︎':'✘')." It $m\n"; if(!$p){$GLOBALS['f']=1;}}function done(){if(@$GLOBALS['f'])die(1);}

Aurélien Léger Dexyne

Conventions

Degrees to radians

Table of Contents

agnoster.zsh-theme