Holly Borla and Grace Kendall, both software engineers at Apple, join John to go on a deep dive into the Swift Playgrounds app and Swift 5.2’s new diagnostics engine. Also, how Swift Playgrounds was ported to the Mac using Catalyst, and Swift’s role in education and as a language for beginners.

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Links

• Holly on Twitter
• Grace on Twitter
• John on Twitter
• Grace and Holly’s WWDC talk from 2018
• Swift Playgrounds
• Assigning a playground’s liveView
• PlaygroundKeyValueStore
• Making a playground execute indefinitely
• An overview of the new diagnostics engine on the Swift blog
• Abstract Syntax Tree
• Opaque return types
• @autoclosure
• Google Summer of Code on the Swift Forums
• The Swift compiler’s source code
• Swift’s bug tracker
• Intro and outro music by Dariusz Dziuk