Yassine ayassinov

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.

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns                     on recent CPU
L2 cache reference ........................... 7 ns                     14x L1 cache
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns                     20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs 4X memory

	package main

	import (
	"encoding/json"
	"log"
	"net/http"
	"reflect"
	"time"

	"github.com/gorilla/context"

	package main

	import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/gorilla/context"
	"github.com/codegangsta/negroni"

	package main

	import (
	"database/sql"
	"encoding/json"
	"errors"
	"fmt"
	"log"
	"net/http"
	"time"

	package com.segmint.jdbi;

	import java.lang.reflect.Constructor;
	import java.lang.reflect.Field;
	import java.lang.reflect.ParameterizedType;
	import java.lang.reflect.Type;
	import java.math.BigDecimal;
	import java.sql.Array;
	import java.sql.ResultSet;
	import java.sql.SQLException;

	data:text/html, <style type="text/css">.e{position:absolute;top:0;right:0;bottom:0;left:0;}</style><div class="e" id="editor"></div><script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script><script>var e=ace.edit("editor");e.setTheme("ace/theme/monokai");e.getSession().setMode("ace/mode/ruby");</script>
	<!--
	For other language: Instead of `ace/mode/ruby`, Use

	Markdown -> `ace/mode/markdown`
	Python -> `ace/mode/python`
	C/C++ -> `ace/mode/c_cpp`
	Javscript -> `ace/mode/javascript`
	Java -> `ace/mode/java`
	Scala- -> `ace/mode/scala`

	#!/bin/sh
	# Just copy and paste the lines below (all at once, it won't work line by line!)
	# MAKE SURE YOU ARE HAPPY WITH WHAT IT DOES FIRST! THERE IS NO WARRANTY!

	function abort {
	echo "$1"
	exit 1
	}

	set -e

	import play.api._
	import mvc._

	import controllers.Info.VERSION_PROPERTY
	import controllers.Info.DEFAULT_VERSION

	object Global extends GlobalSettings {
	val VERSION_PROPERTY = "my.property.name"
	val DEFAULT_VERSION = "0.0.0"