Connecting and merging Combine publishers in Swift
Solving real-world problems.
Weekly Swift articles, podcasts and tips by John Sundell.
Weekly Swift articles, podcasts and tips by John Sundell.
Solving real-world problems.
Expanding, organizing, and conditionally adding functionality.
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Combining dynamic and constant output values.
My latest article on the Bitrise blog.
View models, publishers, and custom container views.
How Combine’s operators for connecting and merging publishers can be used to solve real-world problems, such as nested network calls, handling multiple input sources, and more.
An overview of the sort of patterns and techniques that Swift’s extensions enable us to adopt, and how extensions can turn out to be one of the most powerful features that the language has to offer.
Vincent Pradeilles joins John to discuss various ways to use Swift language features like key paths and closures, how they relate to patterns typically used within functional programming, and when and how to adopt such patterns.
Simon Støvring, the developer behind several powerful iOS productivity apps, including Scriptable, joins John on an episode all about the new home screen widgets introduced in iOS 14. Topics include how to create and update dynamic widgets, managing and sharing data between an app and its widgets, and much more.
Combining dynamic and constant output values.
How Swift 5.3 lets us combine lazy properties with willSet and didSet observers.
Why rewrite views when we can reuse them?
Let’s take a look at how Swift’s key paths work, and how they relate to functions — both in terms of what comes built into the language itself, and what kind of utilities that we can write ourselves to form some really nice convenience APIs.
Let’s take a look at the role that controllers play within the MVC design pattern, and how we can avoid some of the most common issues when working with them — particularly around how we can break up Massive View Controllers into smaller building blocks.
An introduction to Swift’s type inference system, how it makes the syntax of the language so lightweight, and how to work around some of its limitations.
In this Basics article, let’s take a look at a few examples of the various kinds of properties that Swift supports, and what their characteristics are.