logicmason’s gists

logicmason / gist:7267772

Created November 1, 2013 16:16

This nQueens solution in Scala is surprisingly verbose compared to the JS versions I've seen. I'm still a beginner though, working through the Coursera class by Martin Odersky.

	object nQueens {
	def queens(n: Int): Set[List[Int]] = {
	def placeQueens(k: Int): Set[List[Int]] =
	if (k == 0) Set(List())
	else
	for {
	queens <- placeQueens(k - 1)
	col <- 0 until n
	if isSafe(col, queens)
	} yield col :: queens

logicmason / Preferences.sublime-settings

Last active December 27, 2015 08:39

My Sublime Text 2 user preferences will automatically trim trailing whitespace on every save, and the Node.js build system allows running JavaScript files by hitting command-b. If your Node installation is in a different location you may have to change the path in the "cmd" line.

	{
	"font_size": 13.0,
	"tab_size": 2,
	"translate_tabs_to_spaces": true,
	"trim_automatic_white_space": true,
	"trim_trailing_white_space_on_save": true,
	"use_tab_stops": true
	}

logicmason / gist:7315562

Last active December 27, 2015 10:59

Sieve of Eratosthenes in Scala, using lazy evaluation. Example code in lines 4-5 prints out first 15 primes

	def sieve(s: Stream[Int]): Stream[Int] = {
	s.head #:: sieve(s.tail.filter(_ % s.head != 0))
	}

	val primes = sieve(Stream.from(2)) //infinite lazy stream
	println((primes take 15).toList)

logicmason / yc.js

Last active June 18, 2021 01:46

Y combinator in JavaScript and factorial function example (recursion with all anonymous functions)

	var Y = function(proc) {
	return (function(x) {
	return proc(function(y) { return (x(x))(y);});
	})(function(x) {
	return proc(function(y) { return (x(x))(y);});
	});
	};

	var factgen = function(fact) {
	return function(n) {

logicmason / .bash_profile

Last active August 29, 2015 14:12

.bash_profile

	export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig/:/usr/X11/lib/pkgconfig:
	export CLICOLOR=1
	export LSCOLORS=ExFxCxDxBxegedabagacad

	[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session as a function

	source /Applications/Xcode.app/Contents/Developer/usr/share/git-core/git-completion.bash
	source /Applications/Xcode.app/Contents/Developer/usr/share/git-core/git-prompt.sh
	GIT_PS1_SHOWDIRTYSTATE=true
	#export PS1='\u@\h:\w$(__git_ps1)$ '

logicmason / Preferences.sublime-settings

Created January 6, 2015 16:54

	{
	"auto_complete_commit_on_tab": true,
	"color_scheme": "Packages/Color Scheme - Default/Monokai.tmTheme",
	"folder_exclude_patterns":
	[
	".svn",
	".git",
	".hg",
	"CVS",
	"node_modules"

logicmason / handlebars-helper.js

Last active August 29, 2015 14:18

Why doesn't Handlebars have something like this built-in?

	/** Because Handlebars sucks and won't let you iterate with @index
	* Use this lookup helper to do things with the automatic @index var inside loops
	*
	* Usage example: (Get the item at @index each iteration through foo)
	* {{#each foo}}
	* <div>{{someProp}}</div>
	* <div>{{lookup ../dailyStat @index}}</div>
	* {{/each}}
	*
	* Block usage example: (get the item at @index in monthlyUniqueCustomers and then use its subcomponents

logicmason / Mini-bandit.js

Last active August 29, 2015 14:19

	// Mini-bandit
	const explorationRatio = 0.1;

	// example levers array
	/* [{name: 'control', trials: 412, conversions: 113, revenue: 22260},
	{name: 'noCarousel', trials: 723, conversions: 298, revenue: 45390},
	{name: 'crazyCarousel', trials: 19, conversions: 11, revenue: 6600}
	]
	*/

logicmason / auth_controller.ex

Created December 19, 2016 16:43

Generate tokens for Twilio Programable video

	# my_app/web/controllers/auth_controller.ex
	defmodule MyApp.AuthController do
	use MyApp.Web, :controller
	import Ecto.Query
	alias MyApp.TwilioToken

	# Connect this to a route for /token:identity
	def token(conn, %{"identity" => identity}) do
	token = TwilioToken.for_video(identity)
	json conn, %{token: token, identity: identity}

Mark Wilbur logicmason