Introduction
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Welcome to your first lesson on Swift. Swift is a programming language Apple introduced in 2014. It’s a modern programming language with great improvements from the previous one developers used for iOS: Objective-C.
Swift has become the main programming language for all Apple’s platforms: macOS, iOS, iPadOS, tvOS, and even visionOS. You can still use the older Objective-C language to build your apps, but it won’t be as fun. :]
Swift has received many improvements since its release and is still evolving. All these changes are intended to make code simpler to write, more readable, and easier to understand.
In this lesson, you’ll cover three learning objectives:
- Define Swift and describe its key features.
- Identify the different data types in Swift.
- Write Swift code to perform a basic task.