robertmryan

let emailRegex = /((?:[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*"))@((?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\]))/

let redactText = "…"
let maxUserNameLength = 24

func redactEmail(for line: String) -> String {
    line.replacing(emailRegex) { match in
        let (_, name, domain) = match.output
        // If the username is too long, it might be a false positive for an email.
        return name.count > maxUserNameLength ? "\(name)@\(domain)" : redactText

robertmryan

@discardableResult
public func send(_ action: Action) async throws -> State {
    try Task.checkCancellation()
    
    let effect = await reducer.reduce(into: &viewState, action: action)

    if let nextAction = await effect.run() {
        return try await send(nextAction)
    }
    

robertmryan

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()

        let label1 = addLabel(with: "I am a dynamic object")
        let spacer1 = addSpacer()
        let label2 = addLabel(with: "Me too.")
        let spacer2 = addSpacer()
        let label3 = addLabel(with: "Me three")
        let spacer3 = addSpacer()

robertmryan

Task {
    await withDiscardingTaskGroup { group in // or, `withTaskGroup(of: Void.self) { group in … }`
        for destination in pingResults.keys {
            let hostname = destination.hostname
            group.addTask { [self] in
                do {
                    let averagePing = try await getAveragePing(hostname: hostname, interval: 1, timeout: 2, attempts: 5)
                    
                    pingResults[destination] = .success(averagePing)
                    processingFirstResult = false

robertmryan

var task: Task<Void, Error>?
let (stream, continuation) = AsyncStream.makeStream(of: URL.self)

task = Task {
    for await url in stream {
        do {
            print("Sending request to \(url)")
            let (data, response) = try await URLSession.shared.data(from: url)
            // do something with data & response

robertmryan

class ViewController: NSViewController {
    let calendar = Calendar.autoupdatingCurrent
    var previousIdentifier: String = Calendar.current.timeZone.identifier

    override func viewDidLoad() {
        super.viewDidLoad()

        // poll to see if the identifier changed

        Timer.scheduledTimer(withTimeInterval: 1, repeats: true) { [weak self] timer in

robertmryan

import Foundation

class ViewController: NSViewController {
    private let scrollView = NSScrollView()
    private let tableView = NSTableView()
    private let arrayController = NSArrayController()
    private var observers: [NSKeyValueObservation] = []

    // Your data source array
    @objc dynamic var people: [Person] = [

robertmryan

import UIKit

class HandleView: UIView {
    var corner: Corner = .unknown
}

extension HandleView {
    enum Corner: Int {
        case unknown = -1
        case topLeft = 0

robertmryan

var valuesA: [Float] = [2, 0.5, 9, 1, 18]
let rowsA = Int32(valuesA.count)
let columnsA = Int32(valuesA.count)
var rowIndicesA = Array(0 ..< rowsA)
var columnStarts = Array(0 ... valuesA.count)

var valuesB: [Float] = [3,   5,   8,   7,   2,
                        1,   4,   9,   1,   3,
                        2,   7,   3,   1,   2,
                        5,   4,   9,   1,   6,

robertmryan

func fetchData<M: Decodable>(target: T, responseClass: M.Type = M.self, completion: @escaping(Result<M, Error>) -> Void) {
    let method = Alamofire.HTTPMethod(rawValue: target.methods.rawValue)
    let headers = Alamofire.HTTPHeaders(target.headers ?? [:])
    let params = buildParams(task: target.task)
    AF.request(target.baseUrl + target.path, method: method, parameters: params.0, encoding: params.1, headers: headers)
        .validate()
        .responseDecodable(of: M.self) { response in
            switch response.result {
            case .success(let value): completion(.success(value))
            case .failure(let error): completion(.failure(error))