rockbruno

protocol ImmutableCopy {
    associatedtype InitializerTuple
    var lastInitParams: AnyInitializerParams<InitializerTuple> { get }
    func copy(from: (InitializerTuple) -> Self, applying: (inout InitializerTuple) -> Void) -> Self
}

extension ImmutableCopy {
    func copy(from: (InitializerTuple) -> Self, applying: (inout InitializerTuple) -> Void) -> Self {
        var values = lastInitParams.values
        applying(&values)

danielctull

extension UICollectionViewFlowLayout {

    typealias DelegateMethod<Key, Value> = ((UICollectionView, UICollectionViewLayout, Key) -> Value)

    private var delegate: UICollectionViewDelegateFlowLayout? {
        return collectionView?.delegate as? UICollectionViewDelegateFlowLayout
    }

    func retrieve<Key, Value>(

ts95

import FirebaseFirestore

private struct Property {
    let label: String
    let value: Any
}

struct FirestoreModelData {

    let snapshot: DocumentSnapshot

Juanpe

extension String {

  var localized: String {
    return NSLocalizedString(self, comment: "\(self)_comment")
  }
  
  func localized(_ args: [CVarArg]) -> String {
    return localized(args)
  }
  

eMdOS

extension Encodable {
    func encode(with encoder: JSONEncoder = JSONEncoder()) throws -> Data {
        return try encoder.encode(self)
    }
}

extension Decodable {
    static func decode(with decoder: JSONDecoder = JSONDecoder(), from data: Data) throws -> Self {
        return try decoder.decode(Self.self, from: data)
    }

ilyapuchka

extension UIVisualEffectView {
    
    private var filterLayer: CALayer? {
        return layer.sublayers?.first
    }
    
    private var blurFilter: NSObject? {
        return filterLayer?
            .filters?.flatMap({ $0 as? NSObject })
            .first(where: { $0.value(forKey: "name") as? String == "gaussianBlur" })

ollieatkinson

/// This is a list of Hypertext Transfer Protocol (HTTP) response status codes. 
/// It includes codes from IETF internet standards, other IETF RFCs, other specifications, and some additional commonly used codes.
/// The first digit of the status code specifies one of five classes of response; an HTTP client must recognise these five classes at a minimum.
enum HTTPStatusCode: Int, Error {
    
    /// The response class representation of status codes, these get grouped by their first digit.
    enum ResponseType {
        
        /// - informational: This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is terminated by an empty line.
        case informational

alexanderkhitev

  var isValidEmail: Bool {
        do {
            let regex = try NSRegularExpression(pattern: "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,6}", options: .caseInsensitive)
            return (regex.firstMatch(in: self, options: [], range: NSMakeRange(0, self.characters.count)) != nil)
        } catch {
            debugPrint(error.localizedDescription)
            return false
        }
    }

LuizZak

/// Retries the given throwing `block` as a promise `tries` times,
/// re-calling `block` another time until exhausting the tries.
func retry<T>(tries count: Int, block: () throws -> T) -> Promise<T> {
    return Promise().thenRetry(tries: count, block: block)
}

/// Retries the given promise-returning `block` as a promise `tries` times,
/// re-calling `block` another time until exhausting the tries.
func retry<T>(tries count: Int, block: () -> Promise<T>) -> Promise<T> {
    return Promise().thenRetry(tries: count, block: block)

gonzalezreal

iOS Cell Registration & Reusing with Swift Protocol Extensions and Generics

A common task when developing iOS apps is to register custom cell subclasses for both UITableView and UICollectionView. Well, that is if you don’t use Storyboards, of course.

Both UITableView and UICollectionView offer a similar API to register custom cell classes:

public func registerClass(cellClass: AnyClass?, forCellWithReuseIdentifier identifier: String)
public func registerNib(nib: UINib?, forCellWithReuseIdentifier identifier: String)