Forcing an app out of memory on iOS
Donny Wals
Posted on December 23, 2021
donnywals
Using Swift's async/await to build an image loader
Donny Wals
Posted on September 7, 2021
What exactly is a Combine AnyCancellable?
Donny Wals
Posted on August 24, 2021
What does “atomic” mean in programming?
Donny Wals
Posted on August 24, 2021
The iOS Developer's guide to WWDC 2021
Donny Wals
Posted on June 3, 2021
Formatting dates in the user's locale using DateFormatter in Swift
Donny Wals
Posted on October 15, 2020
I wrote a book about Apple's Combine framework
Donny Wals
Posted on March 27, 2020
Reading and writing Property List files with Codable in Swift
Donny Wals
Posted on March 4, 2020
How to sort an Array based on a property of an element in Swift
Donny Wals
Posted on February 25, 2020
Working with throwing functions in Swift
Donny Wals
Posted on February 24, 2020
Testing push notifications in the Simulator with Xcode 11.4
Donny Wals
Posted on February 13, 2020
Five ways to get better at receiving feedback
Donny Wals
Posted on February 5, 2020
Five tips to ask better questions
Donny Wals
Posted on January 15, 2020
Five tips to write better todos
Donny Wals
Posted on January 9, 2020
Getting ready to publish your app on the App Store
Donny Wals
Posted on January 2, 2020
Modern table views with diffable data sources
Donny Wals
Posted on December 24, 2019
Using compositional collection view layouts in iOS 13
Donny Wals
Posted on December 24, 2019
Loose coupling and the law of Demeter
Donny Wals
Posted on December 17, 2019
Breaking an app up into modules
Donny Wals
Posted on December 16, 2019
Sequencing tasks with DispatchGroup
Donny Wals
Posted on December 16, 2019
Responsibly crashing your apps
Donny Wals
Posted on December 16, 2019
Testing your push notifications without a third party service
Donny Wals
Posted on December 13, 2019
Scheduling daily notifications on iOS using Calendar and DateComponents
Donny Wals
Posted on December 12, 2019
Using Xcode's memory graph to find memory leaks
Donny Wals
Posted on December 10, 2019
Measuring performance with os_signpost
Donny Wals
Posted on December 10, 2019
Finding slow code with Instruments
Donny Wals
Posted on December 8, 2019
Effectively using static and class methods and properties
Donny Wals
Posted on December 8, 2019
Understanding opaque return types in Swift 5.1
Donny Wals
Posted on December 6, 2019
An introduction to generics in Swift using its built-in types
Donny Wals
Posted on December 5, 2019
Efficiently loading images in table views and collection views
Donny Wals
Posted on December 4, 2019
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