erica

/*

erica sadun ericasadun.com
Math Types
Swift2

*/

import Foundation
import QuartzCore

jesstelford

Regular Event Loop

This shows the execution order given JavaScript's Call Stack, Event Loop, and any asynchronous APIs provided in the JS execution environment (in this example; Web APIs in a Browser environment)

---

Given the code

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

g0t4

• Shortened URL for this gist: https://git.io/v68XM

• GitHub repository: ES6 in Motion

• Arrow Functions

  • Arrow Functions - Mystery - CodePen
    • Completed
  • Arrow Functions - Orders - CodePen
    • Completed

• Arrow Functions - What's wrong with this? - CodePen

garybernhardt

This document has moved!

It's now here, in The Programmer's Compendium. The content is the same as before, but being part of the compendium means that it's actively maintained.

ryuichis

public struct Event {
    public internal(set) var timeStamp: Date
    public internal(set) var eventTag: String
    
    public init(timeStamp: Date, tag: String) {
        self.timeStamp = timeStamp
        self.eventTag = tag
    }
}

megimix

extension UIImageView {
    func topAlignmentAndAspectFit(to view: UIView) {
        self.contentMode = .scaleAspectFill
        self.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(self)
        
        self.addConstraints(
            [NSLayoutConstraint(item: self,
                                attribute: .height,
                                relatedBy: .equal,

N5-bots

//
//  WKCookieWebView.swift
//
//  Created by Jens Reynders on 30/03/2018.
//  Copyright (c) 2018 November Five
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell