twostraws

// A URLSession extension that fetches data from a URL and decodes to some Decodable type.
// Usage: let user = try await URLSession.shared.decode(UserData.self, from: someURL)
// Note: this requires Swift 5.5.
extension URLSession {
    func decode<T: Decodable>(
        _ type: T.Type = T.self,
        from url: URL,
        keyDecodingStrategy: JSONDecoder.KeyDecodingStrategy = .useDefaultKeys,
        dataDecodingStrategy: JSONDecoder.DataDecodingStrategy = .deferredToData,
        dateDecodingStrategy: JSONDecoder.DateDecodingStrategy = .deferredToDate

jemmons

import Foundation
typealias Continuation<Ret> = (Ret) -> Void
typealias ContinuationMonad<Value> = (@escaping Continuation<Value>) -> Void
typealias Transform<T,U> = (T) -> ContinuationMonad<U>


func async<Value>(_ wrappedValue: Value) -> ContinuationMonad<Value> {
  { $0(wrappedValue) }
}

jpsim

extension Array {
  func parallelMap<T>(transform: (Element) -> T) -> [T] {
    var result = ContiguousArray<T?>(repeating: nil, count: count)
    return result.withUnsafeMutableBufferPointer { buffer in
      DispatchQueue.concurrentPerform(iterations: buffer.count) { idx in
        buffer[idx] = transform(self[idx])
      }
      return buffer.map { $0! }
    }
  }

manmal

import SwiftUI

@MainActor
class PhotoStore: ObservableObject {
    @Published private(set) var isSaving: Bool = false

    // Made nonisolated because Playgrounds does not run on
    // @MainActor. There's probably a cleaner way of doing this
    nonisolated init() {}

denisenepraunig

//
//  BreathAnimation.swift
//  breathing-animation
//
//  Created by Denise Nepraunig on 17.05.21.
//
//  Code is based on this tutorial:
//  https://www.youtube.com/watch?v=KUvkJOhpB9A
//  Thanks Adam :-)

steipete

extension Color {
    /// Return a random color
    static var random: Color {
        return Color(
            red: .random(in: 0...1),
            green: .random(in: 0...1),
            blue: .random(in: 0...1)
        )
    }
}

navsing

//
//  Clubhouse.swift
//  Playground
//
//  Created by Nav Singh on 2/11/21.
//

import SwiftUI

struct Clubhouse: View {

izakpavel

//
//  Lightnings fun
//
//  BEWARE highly unoptimized!
//
//  Created by Pavel Zak on 30/11/2020.
//

import SwiftUI

levelsio

// Modified from @mutsuda's https://medium.com/@mutsuda/create-an-ios-widget-showing-google-spreadsheets-data-856767a9447e
// by @levelsio

// HOW TO
// 1) Make a Google Sheet, we'll pull the first cell e.g. A1
// 2) Publish your Google Sheet, File -> Publish To Web
// 3) Copy the SHEET_ID in the URL, put it in here below:
const endpoint = "https://spreadsheets.google.com/feeds/cells/SHEET_ID/1/public/full?alt=json"
// 4) Install Scriptable @ https://apps.apple.com/us/app/scriptable/id1405459188
// 5) Copy this entire script in to Scriptable (tip: you can send it to your iPhone via Whatsapp/Messenger/Telegram etc)

izakpavel

//
//  RotatorView.swift
//
//  Created by Pavel Zak on 16/11/2020.
//  original idea by: https://twitter.com/beesandbombs/status/1326312738033983489?s=20
//

import SwiftUI

func pow(_ x: Int, _ y: Int) -> Int {