Shemeikka

type CRC16 struct {
	Tab      []uint16
	Constant uint16
}

// Init crc16
func (c *CRC16) Init() {
	c.Constant = 0xA001

	for i := 0; i < 256; i++ {

Shemeikka

import (
	crand "crypto/rand"
	"math/big"
)

// Generates random n sized hex string
func RandString(n int) string {
	const alphanum = "0123456789ABCDEF"
	symbols := big.NewInt(int64(len(alphanum)))
	states := big.NewInt(0)

Shemeikka

defmodule CRC16 do
	use Bitwise	
	@constant 0xA001	

	def calculate(data) do
		crc = 0x0000
		table = init_table()
		:binary.bin_to_list(data)
		|> Enum.reduce(crc, fn(value, crc) ->
			(crc >>> 8) ^^^ Enum.at(table, (crc ^^^ value) &&& 0x00ff)

Shemeikka

# Guide http://blog.hypriot.com/post/how-to-compile-go-on-arm/

# Todo
# Use named variables for versions
# Take version as a cmd argument
# Error handling

# Download Go 1.4.3 source
wget https://storage.googleapis.com/golang/go1.4.3.src.tar.gz
# Extract it

Shemeikka

npm install --save react react-dom
npm install --save-dev babel webpack webpack-dev-server
npm install --save-dev babel-core babel-loader babel-preset-es2015 babel-preset-react

Shemeikka

// From http://codepen.io/kad3nce/pen/bEdwOE

var map = L.map('map').setView(center, 13);
var circle = L.circle(center, 1000).addTo(map);
circle.on('mousedown', function (event) {
    map.dragging.disable();
    var _circle$_latlng = circle._latlng;
    var circleStartingLat = _circle$_latlng.lat;
    var circleStartingLng = _circle$_latlng.lng;
    var _event$latlng = event.latlng;

Shemeikka

// Some stuff requires ES6

// Watch this first
// Philip Roberts: What the heck is the event loop anyway? | JSConf EU 2014 
// https://www.youtube.com/watch?v=8aGhZQkoFbQ

// Then read this
// https://rainsoft.io/gentle-explanation-of-this-in-javascript/

// https://strongloop.com/strongblog/higher-order-functions-in-es6easy-as-a-b-c/

Shemeikka

const factorial = (n, acc=1) => {
  if (n < 1) { return undefined; }  
  
  if (n === 1) { return acc; }
  
  return factorial(n-1, n*acc);
};

const sumFibonacci = (n, prev=0, next=1, acc=0) => {
  if (n === 0) { return acc; }

Shemeikka

import Html exposing (..)
import Html.App exposing (beginnerProgram)
import Html.Attributes as HA exposing (..)
import Html.Events exposing (onClick, onInput)
import String

main =
  beginnerProgram { model = model, view = view, update = update }

Shemeikka

# GenServer callbacks and return values

## init(args)

    {:ok, state}
    {:ok, state, timeout}
    :ignore
    {:stop, reason}
    
## handle_call(msg, {from, ref}, state)