presentations
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DEPRECATED. Short, topic-focused instructor presentations that illustrate iOS and Swift concepts.
Need to incorporate the presentation on app launch, including application entry point, top level code, main.swift, and the synthesis we get with `@UIApplicationMain`. (To be referenced in RSSReader Lesson 1)....
See https://github.com/SwiftEducation/teaching-app-dev-swift/issues/13
See https://github.com/SwiftEducation/teaching-app-dev-swift/issues/12
A little animation to illustrate unwrapping / binding and such would go a long way to explaining how optional types are like "boxes" that contain an expected value or nil.
The Closures presentation is a bit weak and only illustrates the very basics of passing a block of code. This is because the presentation was derived from an older one...