federicosan

Pure SASS-adaption of Lea Verou's contrast-ratio javascript. Can be useful when eg. generating colored buttons from a single supplied color as you can then check which out of a couple of text colors would give the best contrast.

This script currently lacks the support for alpha-transparency that Lea supports in her script though.

In addition to the color-contrast adaption there's also some math methods that were needed to be able to calculate the exponent of a number and especially so when the exponent is a decimal number. A 2.4 exponent is used to calculate the luminance of a color and calculating such a thing is not something that SASS supports out of the box and not something I found a good pure-SASS script for calculating and I much prefer pure-SASS over ruby extensions. The math methods might perhaps be unecessary though if you're running Compass or similar as they may provide compatible math methods themselves.

Normal usage: `color: pick_best_color(#f00

	# Parallel Checkout
	# --------------------------------------------------------------
	# Example of performance gained by using a parallel checkout in an e-commerce store,
	#
	# to run 500 checkouts in series: time elixir checkout.exs 500 serial
	# to run 500 checkouts in parallel: time elixir checkout.exs 500 parallel
	#
	# Typical E-commerce checkout flow uses a bunch of network bound tasks, that are generally
	# computed synchronously. This wastes time and requires larger server clusters to handle peak times
	#

	sudo su postgres

	psql

	update pg_database set datistemplate=false where datname='template1';
	drop database Template1;
	create database template1 with owner=postgres encoding='UTF-8'
	lc_collate='en_US.utf8' lc_ctype='en_US.utf8' template template0;

	update pg_database set datistemplate=true where datname='template1';