Swift DateFormatter Cheatsheet, Formulas, And Examples

Learn how to use DateFormatter to parse, format, and extract components from Dates. Use the cheatsheet to create DateFormatter formulas.

Email Template To Get Beta Testers

Use this email template to ask someone to become a beta tester for your app

Learn Swift for C++ Developers

Learn how to program in Swift with side-by-side C++ examples, covering topics from variable assignment to generics.

Face ID and Touch ID in Swift

Learn how to add Face ID and Touch ID to iOS and macOS apps using the Local Authentication Framework in Swift.

Core Data Background Fetch, Save, & Create

Learn how to create new objects, perform fetch requests, and save a managed object context on a background thread using Core Data in Swift.

Batch Delete And Delete Everything In Core Data

Learn how to delete multiple objects, batch delete, and delete everything in Core Data with Swift.

Core Data Fetch Requests In Swift

Learn how to make queries using fetch requests in Core Data for objects by ID, predicate, and entity with Swift.

Secure Random Numbers and Data in Swift

Learn how to generate secure random data and numbers in Swift using the Security framework.

Getters and Setters in Swift

Learn how to implement getters and setters for Swift properties, and learn about Swift 5.5 support for getters that can throw an error.

Comments in Swift

Learn how to add single line, multi-line, and markdown comments in Swift, and how to add Quick Help documentation in Xcode.

Async / Await in Swift

Learn how to use async and await in Swift by example. Async and await are new Swift 5.5 keywords to help implement asynchronous programming.

Crop UIImage In Swift

Learn how to crop UIImages in Swift to different boundaries, including centering and circular crops like social media apps.

Swift

Core Data Fetched Property Example In Swift

Learn about fetched properties in Core Data with commented example code, and about alternatives to fetched properties in Swift.

Swift

OrderedDictionary In Swift

Learn how and when to use OrderedDictionary, provided by the swift-collections package, in Swift.

Swift

OrderedSet In Swift

Learn how and when to use OrderedSet, provided by the swift-collections package, in Swift.

Swift

Read A File Using Combine In Swift

Learn how to create a custom subscription and publisher to read a file on the main thread or a background thread using Combine in Swift.

Swift

Building and Parsing URLs in Swift

Learn how to create a URL from components, parse a URL into components, and work with URL query items in Swift.

Swift

Autolayout vs Autoresizing Masks in Swift

Learn when to use autolayout and autoresizing masks to create responsive user interfaces in Swift.

Swift

CGPoint Examples in Swift From Lottie and Charts

Learn how top Swift frameworks Lottie and Charts (44k+ combined GitHub stars) use CGPoint in Swift.

Swift

Create, Update, and Delete Core Data Objects in Swift

Learn how to create, update, and delete Core Data objects in Swift with commented code examples.

Swift

Corner Radius, Shadows, and Borders in Swift

Learn how to apply a corner radius, shadow, and border to all kinds of views, including UIViews, UIButtons, and UIImageViews, in Swift.

Swift

Email, Phone, Username, Password, and Date Regular Expressions in Swift

Learn how to create and use regular expressions in Swift to validate emails, phone numbers, usernames, passwords, and dates.

Swift

Regular Expression Capture Groups in Swift

Learn how to create and use regular expressions with named and unnamed capture groups in Swift.

Swift

Swift Typealias Overview and Examples

Learn how to define and use typealias in Swift for types, tuples, closures, protocols, and generics.