Advertisements Is it possible to use Apple Sign-In implementation without using ASAuthorizationAppleIDButton? Does it pass through the reviews? The designers are trying a new style for the button to sign in with Apple, and I would like to know if there is a problem besides consistent and familiar UI experience for users. >Solution : You… Read More Is it possible to use Apple Sign-In implementation without using ASAuthorizationAppleIDButton? Does it pass through the reviews?

Advertisements for code with flatMap let scoresByName = ["Henk": [0, 5, 8], "John": [2, 5, 8]] let flatMap = scoresByName.flatMap { $0.key } print(flatMap) o/p is ["J", "o", "h", "n", "H", "e", "n", "k"] and for code using map let scoresByName = ["Henk": [0, 5, 8], "John": [2, 5, 8]] let flatMap = scoresByName.map {… Read More Trying to understand difference between map and flatMap output in swift

Advertisements I can’t understand why this "Index out of bounds" error is occuring. I want to know what’s the difference between "Index out of bounds" and "Index out of range" and why my code is causing error. Thank you. Code var input = readLine()!.split(separator: " ").map{Int($0)!} var arr = input[1…20] for (i, a) in arr.enumerated()… Read More Swift: Index out of bounds error, I'm so confused

Advertisements Have this code, but did not do the job. Sometimes key is set during view initialization. struct EditApiView: View { @EnvironmentObject var sharedState: SharedState @State private var isLoaded = false @State private var input1 = "" @State private var input2 = "" @State private var input3 = "" @State var key: String? init() {… Read More How to initialize state variable in SwiftUI view?

Advertisements I have an array of integers var array: [Int] = [0, 1, 2] I have an array of strings var arrayOfStrings: [String] = ["apple", "banana", "orange"] I have a function that i can pass an array parameter of Int and returns an array of String. If i call the function and pass the following… Read More Convert elements in an array of Int to elements of another array of String using map and filter

Advertisements I’ve got a protocol called DTO. public protocol DTO { static func GetDefaultInstance() -> DTO } I’ve got a struct that conforms to DTO called Exercise. public struct Exercise: Codable, Identifiable, DTO { public var id: String { return ExerciseId } public var ExerciseId: String public var ExerciseName: String public static func GetDefaultInstance() ->… Read More Why do I get the error 'Type does not conform to protocol' when using a struct that conforms to the protocol?

Advertisements This code print "choco’s memory discard" as a result. But I think this code has memory leak. Because saveClosure function is pointing let choco’s name from the stack. and Closure run is pointing the name in the heap. so let choco’s refrence counting is 2. Also var run is pointing savaClosure. So there is… Read More Swift: I don't understand why this code hasn't memory leak

Advertisements I’ve got a little timer functionality in my app. When the timer starts I create a date object and keep it as a property. I then have a timer set in the code that repeatedly ticks every second and compares the stored property against Date() using timeIntervalSince. However, it looks like all positive values… Read More Why is timeIntervalSince off by 1 consistently?

Advertisements To get the UTF8-encoded byte count of a string, I would simply do the following. let str = "it’s 🌮 time" let totalUTF8EncodedBytes = str.utf8.count print(totalUTF8EncodedBytes) // 14 However, if I’m given an NSRange of this string, how can I get the UTF8-encoded byte count of that range? To add some context, I want… Read More How to get UTF8 encoded byte count of a string given a particular NSRange?

Advertisements I have a doubt when it comes to store array information, this is my API WalletService.shared.getSiteDetails { siteDetails, error in } siteDetails is going to give me the decodeJson information, one of multiple information that is retrieving is public let fuelGrades: [MBFuelGrades]? Which contains this public struct MBFuelGrades: Codable { public let fuelType: String?… Read More Store array custom array information