patrickgwsmith

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(" ")
  }
}

patrickgwsmith

//: Responder chain in Swift using enums

protocol CommandProtocol {}

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

patrickgwsmith

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

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

patrickgwsmith

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

import Foundation


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

patrickgwsmith

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

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

patrickgwsmith

import Foundation


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

patrickgwsmith

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 />;

patrickgwsmith

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

import Foundation


protocol OptionalParasite {
	typealias WrappedParasite
	
	func toArray() -> [WrappedParasite]
}

patrickgwsmith

//: Property Observing
// Swift 1.2

import Cocoa
import XCPlayground


protocol ObjectListenerType {
	func objectDidChange<T: AnyObject>(x: T)
}

patrickgwsmith

protocol ValueStorable {
	subscript(key: String) -> AnyObject? { get set }
}

internal protocol ValueStorableUpdater {
	init?(fromStorable storable: ValueStorable)
	
	func updateStorable(inout storable: ValueStorable)
}