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const { 
  ApolloServer,
  gql,
  SchemaDirectiveVisitor 
} = require('apollo-server');
const { defaultFieldResolver } = require('graphql');

const typeDefs = gql`
  directive @upper on FIELD_DEFINITION

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Docker version 17.05.0-ce

Create nodes using Docker Machine

$ docker-machine create -d virtualbox --virtualbox-memory "512" manager1
$ docker-machine create -d virtualbox --virtualbox-memory "512" manager2
$ docker-machine create -d virtualbox --virtualbox-memory "512" worker1
$ docker-machine create -d virtualbox --virtualbox-memory "512" worker2

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Maps

The Map Data Structure

Maps are data structure composed of a collection of key/value pairs. They are very useful to store simple data, such as property values.

Issues With Using Objects as Maps

When using Objects as maps its keys are always converted to strings.

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Arrays

Reading Values With Array Destructuring

We can use destructuring to assign multiple values from an array to local variables.

let users = ["Sam", "Tyle", "Brook"];
let [a, b, c] = users; // Easy to understand and less code
console.log(a, b, c); // > Sam Tyler Brook

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1. Video - React Fundamentals
2. Article - ReactJS For Stupid People
3. Article - Understanding the React Component Lifecycle
4. Article - React.js Cheatsheet
5. Video - React: Flux Architecture (ES5)
6. Article - A cartoon guide to Flux
7. Article - Flux For Stupid People

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<?php
 
//////////////////////////////////
// Reddit "hot" story algorithm //
//////////////////////////////////
function hot($ups, $downs, $date)
{
	if (is_string($date)) $date = strtotime($date);
 
	$s = $ups - $downs;

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<?php

abstract class enemyShip {
    protected $name;
    protected $amtDamage;
    
    public function setName($newName) {
        $this->name = $newName;
    }
    

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<?php

abstract class enemyShip {
    protected $name;
    protected $amtDamage;
    
    public function setName($newName) {
        $this->name = $newName;
    }
    

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// Card Constructor
function Card(s, n) {
	var suit = s;
	var number = n;
	this.getNumber = function() {
		return number;
	};
	this.getSuit = function() {
		return suit;
	};