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Build Swift

Swift is a modern and intuitive programming language that ranks among the top programming languages for mobile app development. 

Originally developed by Apple, Swift is now the recommended programming language for developing apps for all Apple platforms including iOS, iPadOS, macOS, tvOS, and watchOS. If you plan to write an app for an Apple device, you will need to learn to program in Swift.

In this course, you will cover topics ranging from basic data types, constants and variables, arrays, dictionaries, object-oriented programming, logic and control flow, file and file system management, and error handling.

On completion of this course, you will have sufficient foundational knowledge of Swift programming to begin learning other areas of Apple-based app development such as SwiftUI.

Swift Programming for Mobile App Development

## Character data type

The Swift `Character` data type is used to store a single character of rendered text such as a letter, numerical digit, punctuation mark, or symbol. Internally, characters in Swift are stored in the form of ***grapheme clusters***. A grapheme cluster is made of two or more Unicode scalars that are combined to represent a single visible character. 

The following lines assign a variety of different characters to `Character` type variables:


# Character data type

The Swift `Character` data type is used to store a single character of rendered text such as a letter, numerical digit, punctuation mark, or symbol. Internally, characters in Swift are stored in the form of ***grapheme clusters***. A grapheme cluster is made of two or more Unicode scalars that are combined to represent a single visible character. 

The following lines assign a variety of different characters to `Character` type variables:


Explore the use of Swift String and Character data types, including the use of Unicode and special characters. Also, learn how to build strings from multiple variables using string interpolation.

Welcome to Swift

Swift Types, Constants, and Variables

Swift Operators and Expressions

Swift Control Flow

Swift Functions, Methods, and Closures

Swift Object-Oriented Programming

Swift Structures and Enumerations

Swift Property Wrappers

Swift Array and Dictionary Collections

Swift Error Handling

Working with Files and Directories in Swift

Continuing Your Journey into Swift

Appendix

Character and String Data Types

Character data type