jimmydivvy

object ExistentialTest {

  case class Box[T]()
  case class Pair[T](a: Box[T], b: Box[T])

  val pair: Pair[_] = ???

  val pair2 = Pair(pair.a, pair.b)
  
}

jimmydivvy

module Main where

{-
	Warning: This is not an example of something you should ever do. 

	This is an academic excercise to scratch an itch.

	Every single line of this file is morally wrong and violates all that 
	is good and holy in the world.
-}

jimmydivvy

class IO {

	// We construct the IO type with a thunk/callback that returns the value when called
	constructor( fn ){
		this.fn = fn;
	}

	// IO doesn't do anything until we explicitly call it. 
	run(){
		return this.fn();

jimmydivvy

/* Very basic promise implementation */

class Promise {

	observers: [];
	value: T;
	resolved: Boolean;

	constructor(){		
		this.observers = [];

jimmydivvy

Routing from east coast Australia to Softlayer... via Perth? (Wrong side of the country!)

traceroute to softlayer.com (66.228.119.72), 30 hops max, 60 byte packets
 1  192.168.1.1 (192.168.1.1)  0.316 ms  0.300 ms  1.897 ms
 2  gw101.cha24.brisbane.telstra.net (203.45.253.1)  3.279 ms  3.462 ms  3.583 ms
 3  tengige0-8-0-2.woo-core1.brisbane.telstra.net (203.50.51.129)  12.150 ms  12.159 ms  12.197 ms
 4  bundle-ether11.chw-core10.sydney.telstra.net (203.50.11.70)  17.636 ms  18.027 ms  18.152 ms
 5  bundle-ether8.exi-core10.melbourne.telstra.net (203.50.11.125)  36.428 ms  36.436 ms  36.434 ms
 6  bundle-ether5.way-core4.adelaide.telstra.net (203.50.11.92)  45.297 ms  58.743 ms  59.433 ms
 7  bundle-ether5.pie-core1.perth.telstra.net (203.50.11.17)  86.472 ms  86.906 ms  86.907 ms

jimmydivvy

import scalaz._, Scalaz._

sealed trait Action 

case class Insert(ids:Seq[Int]) extends Action
case class Update(ids:Seq[Int]) extends Action
case class Delete(ids:Seq[Int]) extends Action

object Test extends App {

jimmydivvy

import scalaz._, Scalaz._
 
def bench[T](fn: => T):(T,Long) = {
	val start = System.currentTimeMillis()
	val result = fn
	val end = System.currentTimeMillis()
 
	(result, end - start)
}
 

jimmydivvy

    var bob = Bacon.Model({
         name: "Bob",
         age: 30
    });

    console.log( bob.lens("name").get() ); // "Bob" as expected

    Bacon.constant(1).onValue(function(){
        console.log( bob.lens("name").get() ); // Undefined
    });

jimmydivvy

        moment.parseInTz = function () {
            var args = [], i, len = arguments.length - 1;
            for (i = 0; i < len; i++) {
                args[i] = arguments[i];
            }
            var m = moment.apply(null, args);
            var preTzOffset = m.zone();
            m.tz(arguments[len]);
            return m.add('minutes', m.zone() - preTzOffset);
        };

jimmydivvy

def fib( n: Long ):Long = {		
	def fib_tailrec( n:Long, a:Long, b:Long ):Long = {
		n match {
			case 0 => a			
			case _ => fib_tailrec( n - 1, b, a + b )
		}	
	}

	fib_tailrec(n, 0, 1)		
}