BigZaphod

//
// A Swift property wrapper for adding "indirect" to struct properties.
// Enum supports this out of the box, but for some reason struct doesn't.
//
// This is useful when you want to do something recursive with structs like:
//
// struct Node {
//   var next: Node?
// }
//

networkextension

extension UIImage {
    @available(iOS 15, *)
    var thumbnail: UIImage? {
        get async {
            let size = CGSize(width: 80, height: 40)
            return await self.byPreparingThumbnail(ofSize: size)
        }
    }
}
enum FetchError:Error{

macshome

This page is now depreacted!

Check out the repo instead. The Wisdom of Quinn Now with 100% more archived PDFs.

The Wisdom of Quinn

Informative DevForum posts from everyone's favorite DTS member.

(Arranged newest to oldest)

shaps80

DEPRECATED

This library is now deprecated in favour of a more complete and SwiftUI friendly TextEditor backport:

https://github.com/shaps80/SwiftUIBackports

See it in action here: https://twitter.com/shaps/status/1654972428286668800?s=20

mjm

import SwiftUI

private let linkDetector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)

struct LinkColoredText: View {
    enum Component {
        case text(String)
        case link(String, URL)
    }

scottmatthewman

import SwiftUI
import Combine

struct AdaptsToSoftwareKeyboard: ViewModifier {
  @State var currentHeight: CGFloat = 0

  func body(content: Content) -> some View {
    content
      .padding(.bottom, currentHeight)
      .edgesIgnoringSafeArea(.bottom)

AliSoftware

/*:
 This is a concept re-implementation of the @Binding and @State property wrappers from SwiftUI

 The only purpose of this code is to implement those wrappers myself
   just to understand how they work internally and why they are needed,

 ⚠️ This is not supposed to be a reference implementation nor cover all
      subtleties of the real Binding and State types.
    The only purpose of this playground is to show how re-implementing
      them myself has helped me understand the whole thing better

tclementdev

libdispatch efficiency tips

The libdispatch is one of the most misused API due to the way it was presented to us when it was introduced and for many years after that, and due to the confusing documentation and API. This page is a compilation of important things to know if you're going to use this library. Many references are available at the end of this document pointing to comments from Apple's very own libdispatch maintainer (Pierre Habouzit).

My take-aways are:

• You should create very few, long-lived, well-defined queues. These queues should be seen as execution contexts in your program (gui, background work, ...) that benefit from executing in parallel. An important thing to note is that if these queues are all active at once, you will get as many threads running. In most apps, you probably do not need to create more than 3 or 4 queues.

• Go serial first, and as you find performance bottle necks, measure why, and if concurrency helps, apply with care, always validating under system pressure. Reuse

alexcasalboni

How to use Python3 Type Hints in AWS Lambda

TL;DR

Static Type Checkers help you find simple (but subtle) bugs in your Python code. Check out lambda_types.py and incrementally improve your code base and development/debugging experience with type hints.

Your Lambda Function code will go from this:

mbuchetics

enum JSON: Decodable {
    case bool(Bool)
    case double(Double)
    case string(String)
    indirect case array([JSON])
    indirect case dictionary([String: JSON])

    init(from decoder: Decoder) throws {
        if let container = try? decoder.container(keyedBy: JSONCodingKeys.self) {
            self = JSON(from: container)