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Swift y programación funcional: Contramap

La programación funcional ha introducido varios conceptos poderosos que pueden mejorar significativamente la claridad, concisión y expresividad del código. Entre estos, los predicados y la función contramap ofrecen una manera elegante de construir lógica de validación y filtrado reutilizable y componible. En este artículo, exploraremos cómo estos conceptos pueden aplicarse en Swift para resolver problemas complejos de manera eficiente. Predicados y contramap: Una Introducción

Un Predicate<A> es una estructura que encapsula una condición que los elementos de tipo A deben cumplir. Esta condición se representa mediante un closure que toma un elemento de tipo A y devuelve un valor booleano, indicando si el elemento cumple o no con la condición especificada. La función contramap, por otro lado, permite transformar un Predicate<b> en un Predicate<a> , dada una función que convierte de A a B. Esto es particularmente útil cuando queremos aplicar un predi

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Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

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final class AVLTree<Element: Comparable> {
    private var value: Element?
    private var left: AVLTree<Element>?
    private var right: AVLTree<Element>?
    private var balanceFactor: Int8 = 0
    private var height: Int

    init() {
        height = (value == nil) ? 0 : 1

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//
//  main.swift
//  Philosofers problem with actors (monitors)
//
//

import Foundation

let TiempoDeComer: UInt64 = 2_000_000_000
let TiempoDePensar: UInt64 = 1_000_000_000

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WWDC  2001  2002  2003                    2007  2008  2009
2010 2011 2012 2013 2014<

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@propertyWrapper
public struct AnyProxy<EnclosingSelf, Value> {
    private let keyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>

    public init(_ keyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>) {
        self.keyPath = keyPath
    }

    @available(*, unavailable, message: "The wrapped value must be accessed from the enclosing instance property.")
    public var wrappedValue: Value {

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//  I got inspiration in this repository https://github.com/kishikawakatsumi/KeychainAccess
//  This is a great library that is backward compatible with very old versions of iOS and macOS and gives you a very complete wrapper of the Keychain
//  But it was too much for me, since I didn't need neither that backward compatibility nor so many features, I just wanted to keep Codable secrets in the Keychain.
//  So I have made my own version, also implementing a Property Wrapper to make it agnostic to use.
//  I have thus reduced the 3000 lines of KeychainAccess to less than 200 and I have made its use for the functions I was interested in much more agile and integrated with SwiftUI,
//  KeychainWrapper.swift
//  SyncTion (macOS)
//
//  Created by Rubén on 20/2/23.
//

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extension View {
    @ViewBuilder func `if`<Content: View>(_ condition: Bool, transform: (Self) -> Content) -> some View {
        if condition {
            transform(self)
        } else {
            self
        }
    }

    @ViewBuilder func `if`<Content: View, ContentElse: View>(

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import SwiftUI

struct DatePickerNullable: View {
    let title: String
    @Binding var selected: Date?
    let defaultDate: Date
    
    var body: some View {
        HStack {
            if let date = Binding($selected) {

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How to configure the script?

You should add a shortcut that points to the file location

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy Bypass -File C:\Users\USER\Desktop\notion-inbox.ps1