how to create result builder

Asked on 08/14/2024

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To create a result builder in Swift, you can leverage the feature that allows you to express complex values declaratively. A result builder API takes a closure where a special, lightweight syntax is used to incrementally build up a resulting value. This feature is useful for building native UI frameworks, web page generators, and more within the Swift standard library. For more detailed guidance, you might want to watch the session "Write a DSL in Swift using result builders" from WWDC.

If you're interested in learning more about result builders, you can refer to the session titled "A Swift Tour: Explore Swift’s features and design" from WWDC 2024. This session provides an overview of Swift's features, including result builders. You can start watching the relevant section on result builders at the timestamp A Swift Tour: Explore Swift’s features and design (26:04).