Swift is a fantastic way to write software, whether it’s for phones, desktops, servers, or anything else that runs code. It’s a safe, fast, and interactive programming language that combines the best in modern language thinking with wisdom from the wider Apple engineering culture and the diverse contributions from its open-source community. The compiler is optimized for performance and the language is optimized for development, without compromising on either.
Swift is friendly to new programmers. It’s an industrial-quality programming language that’s as expressive and enjoyable as a scripting language. Writing Swift code in a playground lets you experiment with code and see the results immediately, without the overhead of building and running an app. Swift code is compiled and optimized to get the most out of modern hardware. The syntax and standard library have been designed based on the guiding principle that the obvious way to write your code should also perform the best. Its combination of safety and speed make Swift an excellent choice for everything from “Hello, world!” to an entire operating system.
Swift combines powerful type inference and pattern matching with a modern, lightweight syntax, allowing complex ideas to be expressed in a clear and concise manner. As a result, code is not just easier to write, but easier to read and maintain as well. Swift has been years in the making, and it continues to evolve with new features and capabilities. Our goals for Swift are ambitious. We can’t wait to see what you create with it.
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2. The Xcode Interface – Part 1
3. The Inspector Panel – Interface – Part 2
4. The Editor – Interface – Part 3
5. Hello World App – Part 1
6. Hello World App – Part 2
7. Hello World App – Part 3
String, Types and Tuples
8. Variables and Constants
9. Int, Double and their Subtypes
10. Optional Types and Nil
11. Strings and Characters
12. Boolean Type
More on Arrays, Loops, Directories
15. Fixing Unresponsive Playgrounds
16. Correcting the Command Line Tools Version
20. For, for-in, while, and repeat loops
21. If, guard, and switch
22. Unit Excercise
Functions, References and Closures
23. Basic Function Syntax
24. Default and Variadic Parameters
25. Value and Reference Type Parameters
26. Function Types and Nested Functions
28. Unit Excercise