RoyalIcing

import React from 'react';
import Spinner from 'react-spinner';

export default function loadable(hasLoadedTest, Component) {
  return (props) => {
    if (hasLoadedTest(props)) {
      return <Component { ...props } />;
    }
    else {
      return <Spinner />;

RoyalIcing

import Foundation


protocol StageProtocol {
    func perform() throws -> Self?
    
    var queue: dispatch_queue_t { get }
    
    func run(completion: (() throws -> Self) -> ())
}

RoyalIcing

enum Fruit {
  case apple, pear, orange, plum
}

extension Fruit {
  var cents: Int {
    return switch self [
      .apple: 70,
      .pear: 85,
      .orange: 40,

RoyalIcing

//: Types for currency conversion
// https://www.natashatherobot.com/swift-money-phantom-types/

import Foundation


struct Money {
	enum Currency {
		case GBP, EUR, USD
	}

RoyalIcing

struct Person {
    var firstName, lastName: String
    
    mutating func makeScottishClan() {
      lastName = "mc\(lastName)"
    }
}

// Person.Mutation gets automatically created (like an enum)
//   .firstName(String)

RoyalIcing

//: Responder chain in Swift using enums

protocol CommandProtocol {}

protocol Responder: class {
	var nextResponder: Responder? { get }
	
	func performerForCommand
		<Command : CommandProtocol>
		(command: Command) -> (() -> ())?

RoyalIcing

public struct Person {
  public var firstName: String
  public var middleName: String?
  public var lastName: String
  public var ageInYears: Int
  
  public var fullName: String {
    return [firstName, middleName, lastName].flatMap{ $0 }.joinWithSeparator(" ")
  }
}

RoyalIcing

FROM ruby:2.4-alpine

ENV PATH /root/.yarn/bin:$PATH

RUN apk update && apk upgrade && \
    apk add --no-cache bash git openssh build-base nodejs tzdata

RUN apk update \
  && apk add curl bash binutils tar gnupg \
  && rm -rf /var/cache/apk/* \

RoyalIcing

//: Playground - noun: a place where people can play

import Foundation


struct ExampleStruct : Codable {
    var title: String
    var something: Int
    
    public func encode(to encoder: Encoder) throws {

RoyalIcing

interface State {
  counter: number
}

const counterModel = {
  initial(): State {
    return {
      counter: 0
    };
  },