BasThomas

/*
 Returns the localized label(s) that should be provided by the user to refer to this element.
 Use this property when the accessibilityLabel is not appropriate for dictated or typed input.
 For example, an element that contains additional descriptive information in its accessibilityLabel can return a more concise label.
 The primary label should be first in the array, optionally followed by alternative labels in descending order of importance.
 If this property returns an empty or invalid value, the accessibilityLabel will be used instead.
 default == an empty array
 default on UIKit controls == an array with an appropriate label, if different from accessibilityLabel
 */
@available(iOS 13.0, *)

BasThomas

protocol MyProtocol {
    func doThe(thing: String)
}

extension MyProtocol {
    func doThe(thing: String = "") {
        print("protocol")
    }
}

BasThomas

struct Let {
    let x: String?
}

struct Var {
    var x: String?
}

let l1 = Let(x: nil)
// let l2 = Let() // not available

BasThomas

let registration = UICollectionView.CellRegistration<CardCollectionViewCell, Card> { cell, indexPath, card in
    cell.card = card
}
 let dataSource = UICollectionViewDiffableDataSource<Column, Card>(
    collectionView: collectionView
) { collectionView, indexPath, card -> UICollectionViewCell in
    collectionView.dequeueConfiguredReusableCell(
        using: registration,
        for: indexPath,
        item: card

BasThomas

import Foundation
import XCTest

struct WompWomp: Error {

}

func myThrowingFunction() throws -> Int {
    throw WompWomp()
}

BasThomas

import UIKit

protocol Component: NSObjectProtocol {
    var accessibilityTraits: UIAccessibilityTraits { get set }
}

public final class SpecialComponent: UIView, Component {}

let mySpecialComponent: Component = SpecialComponent(frame: .zero)
mySpecialComponent.accessibilityTraits = .staticText

BasThomas

extension Locale {
    var defaultTemperatureUnit: UnitTemperature {
        if #available(iOS 16, *) {
            return UnitTemperature(forLocale: self, usage: .general)
        } else {
            let mCel = Measurement(value: 0, unit: UnitTemperature.celsius)
            let f = MeasurementFormatter()
            f.locale = self

            let s1 = f.string(from: mCel)

BasThomas

extension Collection where Element == Int, Index == Int {

    /// Calculates a moving average.
    /// - Parameter period: the period to calculate averages for.
    /// - Warning: the supplied `period` must be larger than 1.
    /// - Warning: the supplied `period` should not exceed the collection's `count`.
    /// - Returns: a dictionary of indexes and averages.
    func movingAverage(period: Int) -> [Int: Float] {
        precondition(period > 1)
        precondition(count > period)