kevinold

-- 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%' 

kevinold

#!/bin/bash

sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

kevinold

List()
var list = Immutable.List([1,2,3])
// [1, 2, 3]

List.isList()
Immutable.List.isList(list)
// true

List.of()
var list = Immutable.List.of(1,2,3);

kevinold

import React from 'react';
import MyCoolTextarea from '../MyCoolTextarea';
import MyCoolCounter from '../MyCoolCounter';

const MyCoolComponent = React.createClass({

  // Define a method on the parent component describing what should happen when
  // the textarea gets updated. At this point, the only thing needed is to store
  // the length of the textarea’s content in a state on the parent component.
  //

kevinold

var completed = 30;
var target = 30;
var progress = Math.ceil(completed / target * 100);
console.log(progress);

kevinold

Nodecopter

Overview

In this workshop you'll learn about the wonderful world of autonomous flying robots, specifically the AR Drone 2.0 provides a high level API to send commands, read data back and stream video from it's HD camera.

We'll start writing basic programs to take off and land, and before you know it you'll be using feedback from a wealth of onboard sensors to perform more impressive maneuvers and behaviours.

Preparations

kevinold

#!/usr/bin/env bash
#
# Author: Stefan Buck
# License: MIT
# https://gist.github.com/stefanbuck/ce788fee19ab6eb0b4447a85fc99f447
#
#
# This script accepts the following parameters:
#
# * owner

kevinold

version: 0.1

phases:
  install:
    commands:
      - printenv
      - npm install
  build:
    commands:
      - npm run build

kevinold

// === Arrays

var [a, b] = [1, 2];
console.log(a, b);
//=> 1 2


// Use from functions, only select from pattern
var foo = () => [1, 2, 3];

kevinold

'use strict';

var blacklist = require('./node_modules/react-native/packager/blacklist');

var path = require('path');

/**
 * Default configuration for the CLI.
 *
 * If you need to override any of this functions do so by defining the file