Miguel Araujo miguelarauj1o

The introduction to Reactive Programming you've been missing

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.

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of advantages of using submodules:

You can separate the code into different repositories.

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

Stores data elements based on an sequential, most commonly 0 based, index.
Based on tuples from set theory.

	import Darwin

	public func arc4random <T: IntegerLiteralConvertible> (type: T.Type) -> T {
	var r: T = 0
	arc4random_buf(&r, UInt(sizeof(T)))
	return r
	}

	public extension UInt {
	public static func random(lower: UInt = min, upper: UInt = max) -> UInt {

	import Cocoa

	class GeneralThing<S> {
	var stuff: S?

	func doIt() {
	if let s = stuff {
	doWithStuff(s)
	}
	}

	APP_NAME := my_awesome_app

	all: compile

	compile: clear
	@cp src/$(APP_NAME).app ebin/
	@erlc -pa ebin/ -o ebin/ src/*.erl

	compile_test: compile
	@erlc -pa ebin/ -o ebin/ test/*.erl

	#!/usr/bin/env bash

	# Kill an Erlang process by node name
	#
	# e.g.: kill-erlang-node kred

	# Check usage
	if [ -z "$1" ]; then
	echo "Usage: `basename $0` NODE_NAME"
	exit 1

	%% -- erlang-indent-level: 4;indent-tabs-mode: nil --
	%% ex: ts=4 sw=4 et
	%% @author Kevin Smith <[email protected]>
	%% @copyright 2011 Opscode, Inc.

	-module(example).

	-behaviour(gen_server).

	-export([start_link/0]).

	-module(mymodule).
	start_link() ->
	gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
	...
	crash() ->
	gen_server:cast(?MODULE, crash).
	...
	handle_cast(crash,State) ->
	{stop, error, State};
	...