Nick-Gabe

 const pombify = (phrase) => {
   return phrase
     .split(' ')
     .map((word) => {
       const wordLetters = word.split('')
       return wordLetters
         .map((letter, index) => {
           const charCode = letter.charCodeAt(0);
           const binary = charCode
             .toString(2)

jzohrab

/** Async pool
 * Originally seen at https://github.com/rxaviers/async-pool/blob/master/lib/es6.js
 * Simplified thanks to u/GSLint in
 * https://www.reddit.com/r/learnjavascript/comments/gebobv/cant_grok_asyncpool_es6_code/
 */
 
 /** Run asyncFunction array, poolSize at a time. */
async function asyncPool (array, poolSize) {
  const result = []
  const pool = []

mmmries

Phoenix Nodes

First I created 3 droplets on digital ocean with 4-cores and 8GB of RAM. Login as root to each and run:

sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
ulimit -n 4000000
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

kipcole9

defmodule Map.Helpers do
  @moduledoc """
  Functions to transform maps
  """

  @doc """
  Convert map string camelCase keys to underscore_keys
  """
  def underscore_keys(nil), do: nil

moklett

# This demonstrates that, when using async/await, a crash in the task will crash the caller
defmodule Tasker do
  def good(message) do
    IO.puts message
  end

  def bad(message) do
    IO.puts message
    raise "I'm BAD!"
  end

col

Deploy a Phoenix app with Dokku

Pre-requisits

1. Setup Dokku instance on Digital Ocean
2. Config Phoenix App For Dokku Deploy

Step 1 - Create app

$ ssh <mydomain.com>
$ dokku apps:create 

juanje

I was tired of Chrome eating all my laptop resources so I decided to put some limit to it with cgroup.

As I was using Ubuntu 12.04 with support for cgroup, I installed the package cgroup-bin and add the following group to the file /etc/cgconfig.conf:

group browsers {
    cpu {
#       Set the relative share of CPU resources equal to 25%
        cpu.shares = "256";
 }

fabiotatsuo

sudo apt-get install build-essential libncurses5-dev openssl libssl-dev

wget http://erlang.org/download/otp_src_R15B01.tar.gz
tar zxvf otp_src_R15B01.tar.gz
cd otp_src_R15B01
./configure && make && sudo make install

http://docs.basho.com/riak/latest/tutorials/installation/Installing-Erlang/#Installing-on-GNU-Linux

https://sites.google.com/site/comptekkia/erlang/how-to-install-erlang-on-ubuntu-10-10

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'