staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

tracker1

Directory structure for JavaScript/Node Projects

While the following structure is not an absolute requirement or enforced by the tools, it is a recommendation based on what the JavaScript and in particular Node community at large have been following by convention.

Beyond a suggested structure, no tooling recommendations, or sub-module structure is outlined here.

Directories

• lib/ is intended for code that can run as-is
• src/ is intended for code that needs to be manipulated before it can be used

minorbug

func timeAgoSinceDate(date:NSDate, numericDates:Bool) -> String {
    let calendar = NSCalendar.currentCalendar()
    let unitFlags = NSCalendarUnit.CalendarUnitMinute | NSCalendarUnit.CalendarUnitHour | NSCalendarUnit.CalendarUnitDay | NSCalendarUnit.CalendarUnitWeekOfYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitSecond
    let now = NSDate()
    let earliest = now.earlierDate(date)
    let latest = (earliest == now) ? date : now
    let components:NSDateComponents = calendar.components(unitFlags, fromDate: earliest, toDate: latest, options: nil)
    
    if (components.year >= 2) {
        return "\(components.year) years ago"

siberianisaev

import Foundation

private var AssociatedObjectHandle: UInt8 = 0

extension UINavigationBar {
    
    var height: CGFloat {
        get {
            if let h = objc_getAssociatedObject(self, &AssociatedObjectHandle) as? CGFloat {

JaviLorbada

Videos

• Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
• ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
• The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
• Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
• WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
• Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
• Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/

MihaelIsaev

import UIKit
import AVFoundation

class ViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {

    @IBOutlet weak var myView: UIView!
    
    var session: AVCaptureSession?
    var device: AVCaptureDevice?
    var input: AVCaptureDeviceInput?

capttaco

import CoreData

protocol Fetchable
{
    typealias FetchableType: NSManagedObject
    
    static func entityName() -> String
    static func objectsInContext(context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> [FetchableType]
    static func singleObjectInContext(context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> FetchableType?
    static func objectCountInContext(context: NSManagedObjectContext, predicate: NSPredicate?) -> Int

yuhua-chen

struct Drag {
    static var placeholderView: UIView!
    static var sourceIndexPath: NSIndexPath!
}

func handleLongPress(gesture: UILongPressGestureRecognizer) {
    let point = gesture.locationInView(tableView)
    let indexPath = tableView.indexPathForRowAtPoint(point)

    switch gesture.state {

pxlshpr

1. Add the URL of the framework's repo to your Cartfile using one of the following:

  github "ReactiveCocoa/ReactiveCocoa" # GitHub.com
  github "https://enterprise.local/ghe/desktop/git-error-translations" # GitHub Enterprise
  git "https://enterprise.local/desktop/git-error-translations2.git"
  git "/Users/user/foo/bar.git"

…optionally followed by one of the following version specifiers:

erica

// CONSTRUCTING ALPHABET ARRAY

// This my favorite because it's easily used with any character set
extension NSCharacterSet {
    var members: [String] {
        let unichars = Array(unichar(0)..<unichar(128)).filter({self.characterIsMember($0)})
        return unichars.map({String(UnicodeScalar($0))})
    }
}