conradev

import SwiftUI

@main
struct ExampleApp: App {
    var body: some Scene {
        WindowGroup {
            OnboardingView()
        }
    }
}

guzhenhuaGitHub

import UIKit

// According to article by John Sundell
// https://www.swiftbysundell.com/articles/caching-in-swift/

final class Cache<Key: Hashable, Value> {
    private let wrapped = NSCache<WrappedKey, Entry>()
    private let dateProvider: () -> Date
    private let entryLifetime: TimeInterval
    private let keyTracker = KeyTracker()

karthikAdaptavant

//
//  AppstoreUpdateManager.swift
//  AppStoreUpdateManager
//
//  Created by Karthik on 7/27/18.
//  Copyright © 2018 Karthik. All rights reserved.
//

import Foundation
import UIKit

stoeffn

/// Something that can be created in a core data context, usually an `NSManagedObject`.
public protocol CDCreatable {
    /// Creates this object in the context given.
    ///
    /// - Parameter context: Managed object context.
    /// - Remarks: Default constructor generated by `NSManagedObject`.
    /// - Warning: When creating objects, use `init(createIn:)` instead as it may contain additional initilization logic.
    init(context: NSManagedObjectContext)

    /// Creates this object in the context given.

artemnovichkov

func +=<T>(lhs: inout T?, rhs: T) where T: SignedNumeric {
    switch lhs {
    case .none:
        break
    case .some(let value):
        lhs = .some(value + rhs)
    }
}

func -=<T>(lhs: inout T?, rhs: T) where T: SignedNumeric {

gokselkoksal

public class Channel<Value> {
    
    private class Subscription {
        
        weak var object: AnyObject?
        private let notifyBlock: (Value) -> Void
        private let queue: DispatchQueue
        
        var isValid: Bool {
            return object != nil

deepakraj27

//
//  AttachmentHandler.swift
//  AttachmentHandler
//
//  Created by Deepak on 25/01/18.
//  Copyright © 2018 Deepak. All rights reserved.
//

import Foundation
import UIKit

mwrites

//MARK: -
//MARK: Private
class JobQueueCenter {
    fileprivate let storageAccessQueue = DispatchQueue(label: "com.JobQueueCenter.storageAccessQueue")
    fileprivate lazy var storage: JobQueueStorage = { ... }

    fileprivate func serializeStorage() {}
	
    fileprivate init() {
	NotificationCenter.default.addObserver(self, selector: #selector(tryPersist), name: .UIApplicationDidReceiveMemoryWarning, object: nil)

basememara

import Foundation
import PlaygroundSupport

/// A thread-safe array.
public class SynchronizedArray<Element> {
    private let queue = DispatchQueue(label: "io.zamzam.ZamzamKit.SynchronizedArray", attributes: .concurrent)
    private var array = [Element]()
    
    public init() { }
    

jochenschoellig

import UIKit


class ChatCollectionViewFlowLayout: UICollectionViewFlowLayout {
    
    private var topMostVisibleItem    =  Int.max
    private var bottomMostVisibleItem = -Int.max
    
    private var offset: CGFloat = 0.0
    private var visibleAttributes: [UICollectionViewLayoutAttributes]?