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freak4pc
/ Combine+WithLatestFrom.swift
Last active
March 19, 2026 16:25
withLatestFrom for Apple's Combine
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| // | |
| // Combine+WithLatestFrom.swift | |
| // | |
| // Created by Shai Mishali on 29/08/2019. | |
| // Copyright © 2019 Shai Mishali. All rights reserved. | |
| // | |
| import Combine | |
| // MARK: - Operator methods |
brennanMKE
/ Async.swift
Last active
March 6, 2023 13:01
Blocking with Semaphores and DispatchGroups in Swift
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| import PlaygroundSupport | |
| import Foundation | |
| class Worker { | |
| private let queue = DispatchQueue.global(qos: .background) | |
| private let serialQueue = DispatchQueue(label: "com.acme.serial") | |
| public private(set) var count = 0 | |
| func incrementCount() { |
DaveWoodCom
/ String+Email.swift
Last active
April 21, 2026 12:31
Swift method to check for a valid email address (uses Apples data detector instead of a regex)
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| extension String { | |
| func isValidEmail() -> Bool { | |
| guard !self.lowercaseString.hasPrefix("mailto:") else { return false } | |
| guard let emailDetector = try? NSDataDetector(types: NSTextCheckingType.Link.rawValue) else { return false } | |
| let matches = emailDetector.matchesInString(self, options: NSMatchingOptions.Anchored, range: NSRange(location: 0, length: self.characters.count)) | |
| guard matches.count == 1 else { return false } | |
| return matches[0].URL?.scheme == "mailto" | |
| } | |
| } |
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