yankov

<script type='text/javascript' src='http://cdn.sockjs.org/sockjs-0.1.min.js'></script>
<script type='text/javascript' src='vertxbus.js'></script>

<script type="text/javascript">

var eb = null;

window.onload = function() {

    eb = new vertx.EventBus("http://localhost:8080/eventbus");

yankov

# do gem install web-socket-ruby first

require 'web_socket'
require 'json'

client = WebSocket.new("ws://localhost:8080/eventbus/websocket")

message = {:name => "tim", :age => 29}
envelope = {:type => "send",
            :address => "some-address",

yankov

var future = function(d) { 
  var obj = {}; 
  obj.val = 0; 

  setTimeout(function(){ obj.val=d;}, 5000); 

  return obj;  
}

var result = future(4); 

yankov

require 'em-synchrony'
require 'redis'
require 'redis/distributed'
require 'digest'
require 'redis/connection/synchrony'

EM.synchrony do
 
# this one fast
 redis_hosts = ["redis://localhost:6379/1", "redis://localhost:6378/1"]

yankov

# is there a good pattern for this routine?

EM.synchrony do
  
  size = keys.count
  counter = 0
  
  # check if each iteration was completed
  EM::add_periodic_timer( 2 ) do 
    next unless counter == size

yankov

# refactored version from http://redis.io/topics/mass-insert

def gen_redis_proto(*cmd)
  cmd.inject("*#{cmd.length}\r\n") {|acc, arg|
    acc << "$#{arg.length}\r\n#{arg}\r\n"
  }
end

yankov

function A(name) {
  this.name = name;
}

A.prototype.b = function(lastName) {
  this.lastName = lastName;
  console.log(this.name + " " + this.lastName);
}

a1 = new A("Howard");

yankov

a = new A();
b = new a.B();

// how in 'b' have a refference to 'a'? 

yankov

mkdir project1
cd project1

sbt
set name := "project1"
set version := "1.0"
set scalaVersion := "2.9.3"
session save
exit

yankov

package week7

class Pouring(capacity: Vector[Int]) {
  // States

  type State = Vector[Int]
  val initialState = capacity map (x => 0)

  // Moves