chriseidhof

import UIKit

struct Screen<A> {
    let run: (A -> ()) -> UIViewController
}

struct Step<A> {
    let build: (navigationController: UINavigationController, callback: A -> ()) -> UIViewController
}

chriseidhof

// Variables just contain an integer. We can have a maximum of `Int.max` variables in our program.  ¯\_(ツ)_/¯

private struct Var {
    static var freshVarIx = 0
    let ix: Int
    init() {
        Var.freshVarIx+=1
        ix = Var.freshVarIx
    }
}

nicklockwood

@interface AnimatedContentsLayer: CALayer

@property (nonatomic, assign) CGSize animatedSize;

@end


@implementation AnimatedContentsLayer

@dynamic animatedSize;

chriseidhof

import Cocoa
import MASShortcut

func pow() {
    let rect = NSScreen.mainScreen()?.frame
    let window = NSWindow(contentRect: rect!, styleMask: NSBorderlessWindowMask, backing: .Buffered, `defer`: false)
    window.backgroundColor = NSColor.clearColor()
    window.opaque = false
    window.alphaValue = 1
    window.makeKeyAndOrderFront(NSApplication.sharedApplication())

nikolaykasyanov

@import UIKit;


NS_ASSUME_NONNULL_BEGIN

@protocol MFBPreviewableCollectionView

- (nullable NSIndexPath *)mfb_previewableCollectionIndexPathForItemAtPoint:(CGPoint)point;
- (CGRect)mfb_previewableCollectionItemRectForIndexPath:(NSIndexPath *)indexPath;

CognitiveDisson

//
//  AppDelegateHandler.swift
//  Pods
//
//  Created by Andrey Zarembo on 10.02.16.
//
//

import Foundation

erica

// @discardableResult to be added
// @noescape needs to move to type annotation
// needs to add _ for item
public func with<T>(item: T, @noescape update: (inout T) throws -> Void) rethrows -> T {
    var this = item; try update(&this); return this
}

PaulTaykalo

public func <~ <Destination, Source: SignalProducerType where Source.Value == Destination>(destinationSelector: (Destination) -> (), sourceProducer: Source) -> Disposable {
    return sourceProducer.startWithNext(destinationSelector)
}

// Without binding...
viewModel.deliveryTime.producer
    .map { ($0, UIControlState.Normal) }
    .takeUntil(rac_willDeallocSignalProducer())
    .startWithNext(deliveryTimeButton.setTitle)
    

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,

imax

Compare cost of living in different locations around the world.

Country (city)	Salary (gross)	Taxes	Apartment	Visa	More info
Germany (Berlin)	€50-60k	27-33%	€700-1200/mo	Blue Card, 1-3 months, spouse can work	de_faq на русском Numbeo
Estonia (Tallinn)	€35-45k	41.5%	€600-1200/mo	2 months, spouse can work	Taxes
xxx

Legend: