jamesp

### Download and install
cd /tmp
curl http://erlang.org/download/otp_src_R13B03.tar.gz | tar zx
cd otp_src_R13B
./configure --enable-hipe
make
sudo make install

sudo mkdir -p /Library/Erlang/lib
mkdir -p ~/Library/Erlang/lib

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
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 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

andrzejsliwa

%% See LICENSE for licensing information.
-module(cowboy_debug).

-export([onrequest_hook/1]).
-export([onresponse_hook/4]).

onrequest_hook(Req) ->
    Method = to_string(extract(cowboy_req:method(Req))),
    Path   = to_string(extract(cowboy_req:path(Req))),
    Params = params_to_string(extract(cowboy_req:qs_vals(Req))),

iwek

//return an array of objects according to key, value, or key and value matching
function getObjects(obj, key, val) {
    var objects = [];
    for (var i in obj) {
        if (!obj.hasOwnProperty(i)) continue;
        if (typeof obj[i] == 'object') {
            objects = objects.concat(getObjects(obj[i], key, val));    
        } else 
        //if key matches and value matches or if key matches and value is not passed (eliminating the case where key matches but passed value does not)
        if (i == key && obj[i] == val || i == key && val == '') { //

reiddraper

!SLIDE

Monads in Erlang

monads are simple

!SLIDE

a monad is a monoid in the category of endofunctors

janl

Hoodie vs. Meteor

Preface: Not a Meteor Expert. Please comment with improvements.

Paraphrasing philosophy:

• Hoodie, Look ma! No Backend.
• Meteor, Backend Power on the Fronend.

A couple of high-level observations:

mystix

VERSION=0.20.6

sudo apt-get update
sudo apt-get install openjdk-6-jdk

wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-$VERSION.deb
sudo dpkg -i elasticsearch-$VERSION.deb

# be sure you add "action.disable_delete_all_indices" : true to the config!!

cgoldberg

# install bzr and gource
# get a branch of Mir's trunk code
# create gource video


$ sudo apt-get install bzr gource
$ bzr branch lp:mir
$ cd mir
$ gource \
    -s .06 \

parroty

defmodule QuickSort do
  def sort([]), do: []
  def sort([head|tail]) do
    {lesser, greater} = Enum.partition(tail, &(&1 < head))
    sort(lesser) ++ [head] ++ sort(greater)
  end
end

IO.inspect QuickSort.sort([1,6,3,4,2,5])

sayotte

Eshell V5.9.1  (abort with ^G)
1> rr(parent).
[parent_type]
2> rr(child).
[child_type,parent_type]
3>
3> 
3> {ok, P1} = child:start_link(none).
{ok,<0.42.0>}
4>