Programming in Swift: Fundamentals

Oct 19 2021 · Swift 5.5, iOS 15, Xcode 13

Part 1: Core Concepts

02. Swift Playgrounds & Comments

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Notes: 02. Swift Playgrounds & Comments

Update Notes: The student materials have been reviewed and are updated as of October 2021.

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If you finished building the Bull’s Eye game in Your First iOS App, then you’re already familiar with using Swift in Xcode’s standard editor. Xcode has another interface called “Playgrounds” that you’ll be using in this course, so let’s get familiar with how they work.

var welcomeMessage = ...
let goodbyeMessage = "See you soon!"
// The code below prints out a goodbye message
// Yet another comment.
/* This is a comment
   spread out over a few lines
   also, a haiku! 
//let goodbyeMessage = "See you soon!"