stevencurtis

extension Collection {
    subscript(index i : Index) -> Element? {
        return indices.contains(i) ? self[i] : nil
    }
}

sliceOfArray[index: 0]

stevencurtis

if array.indices.contains(3) {
    print (array[3])
}

mattt

import UIKit

#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct UIViewControllerPreview<ViewController: UIViewController>: UIViewControllerRepresentable {
    let viewController: ViewController

    init(_ builder: @escaping () -> ViewController) {
        viewController = builder()
    }

jpsim

An Xcode project generates the following archive:

$ tree Yams-macosx.xcarchive
Yams-macosx.xcarchive
├── Info.plist
├── Products
│   └── Library
│       └── Frameworks
│           └── Yams.framework

szotp

import Foundation

typealias ApiCallback<Output> = Optional<(Result<Output, Error>) -> Void>

protocol EndpointClient {
    func execute<Output>(endpoint: Endpoint<Output>, onResult: ApiCallback<Output>)
}

struct RequestBuilder {
    var path: String = ""

mrk-han

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For an emulator that mimics a Pixel 5 Device with Google APIs and ARM architecture (for an M1/M2 Macbook):

1. List All System Images Available for Download: sdkmanager --list | grep system-images

2. Download Image: sdkmanager --install "system-images;android-30;google_atd;arm64-v8a"

manekinekko

Open a github repository in the Cloud Shell

The Google Cloud Shell gives you a handy and quick Shell access to your Cloud instance. One thing you may not know is that you can use the Cloud Shell to clone and edit a Github project. Let's see how.

The trick here is to just call the following URL: https://console.cloud.google.com/cloudshell/open with the following parameters:

1. git_repo: this is the URL to your github repository
2. open_in_editor: this would be the file you want to open in the editor
3. page=editor: this tells the cloud shell to open the code editor

hilalbaig

import Foundation
import UIKit

private var AssociatedObjectHandle: UInt8 = 0

extension UINavigationBar {
    
    var height: CGFloat {
        get {
            if let h = objc_getAssociatedObject(self, &AssociatedObjectHandle) as? CGFloat {

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

ninjaprox

#!/bin/bash

component=$1

version=$(/usr/libexec/PlistBuddy -c 'Print CFBundleShortVersionString' Info.plist)
IFS="." read major minor patch <<< "$version"

echo "$version"

if [[ "$component" = 'major' ]]; then