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The async/await syntax, introduced in Swift 5.5, allows a readable way to write asynchronous code. Asynchronous programming can improve performance of an app, but it is important to cancel unneeded tasks to ensure unwanted background tasks do not interfere with the app. This article demonstrates how to cancel a task …
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The async/await syntax was introduced in Swift 5.5 with Meet async/await in Swift in WWDC 2021. It is a more readable way to write asynchronous code and is easier to understand than dispatch queues and callback functions. The async/await syntax is similar to those used in other programming languages like C# or …
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The Swift standard library provides an ArraySlice to work with a subset of a larger collection without the overhead of making a copy of the original collection. Retrieving the first few elements of a collection can be achieved using the one-sided range operator, but is safer to use the prefix method without having to …
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Apple introduced SwiftUI Charts at WWWDC 2022, which makes it incredibly easy to create charts within SwiftUI views. The default chart presents the entire data in the chart plot regardless of how much data is available. It can be beneficial to show more details on a chart and add the ability to scroll through the …
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Apple introduced NavigationStack and NavigationSplitView at WWWDC 2022 to replace NavigationView, which has been deprecated. The documentation for NavigationSplitView includes sample code, but the code does not work as it is missing model data. Here is some model data to allow the sample code in the documentation to …
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There are multiple ways to define colors in code. The most commonly used method is to specify values for the three primary colors - red, green and blue (RGB). This article explores the use of an alternative mechanism by specifying values for hue, saturation and brightness (HSB). The HSB properties can be used in a more …
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