Swift Pocket Reference

About this book

Get quick answers for developing and debugging applications with Swift Apples multi-paradigm programming language. This pocket reference is the perfect on-the-job tool for learning Swifts modern language features including type safety generics type inference closures tuples automatic memory management and support for Unicode. Designed to work with Cocoa and Cocoa Touch Swift can be used in tandem with Objective-C and either of these languages can call APIs implemented in the other. Swift is still evolving but its clear that Apple sees it as the future language of choice for iOS and OS X software development. Topics include: Swifts Run-Eval-Print-Loop (REPL) and interactive playgrounds Supported data types such as strings arrays and dictionaries Variables and constants Program flow: loops and conditional execution Classes structures enumerations functions and protocols Closures: similar to blocks in Objective-C and lambdas in C# Optionals: values that can explicitly have no value Operators operator overloading and custom operators Access control: restricting access to types methods and properties Built-in global functions and their parameter requirements