Swift

Swift is a modern open-source language with the aim of making programming simple things easy, and difficult things possible while still being fast and safe by design. Swift can run in scripting mode in the included REPL or it can be compiled with full support for C and Objective-C interoperability.

Master Swift with
Interactive Learning

Elevate your Swift skills through 124 curated exercises across 18 core concepts. Master problem-solving with a structured learning path designed for modern developers.

About Swift

Swift is a modern open source programming language that runs on macOS, Linux and on Windows.

Swift was developed initially by Apple to interoperate with their key frameworks, Cocoa and CocoaTouch, both of which are mostly implemented in Objective-C.

Swift is influenced by a large number of existing programming languages, and it incorporates concepts from a wide range of programming methods. Everything from scripting to object oriented and functional programming.

Apple refers to Swift as a "protocol oriented programming language" and has expressed the goal of eventually making Swift useful for everything from scripts to an operating system.

This Swift Tour is an introduction to the language on Apple's Public Developer Website.

Wikipedia's Swift Page giving a good, Wikipedia-styled overview.

Swift is documented in The Swift Programming Language. There is also a version on the iBooks Store. The ePub version is also available on Swift.org.

Key Features of Swift

Modern

Swift incorporates the latest research on programming languages, combined with Apple's experience.

Designed for safety

Swift eliminates entire classes of unsafe code.

Fast and powerful

From its earliest conception, Swift was built to be fast.

Great first language

Swift was designed to be anyone’s first programming language.

Cross platform

Support Apple platforms, Linux, and Windows.

Open source

Swift is open-source and developed in the open at Swift.org.

Modern

Swift incorporates the latest research on programming languages, combined with Apple's experience.

Designed for safety

Swift eliminates entire classes of unsafe code.

Fast and powerful

From its earliest conception, Swift was built to be fast.

Great first language

Swift was designed to be anyone’s first programming language.

Cross platform

Support Apple platforms, Linux, and Windows.

Open source

Swift is open-source and developed in the open at Swift.org.

A taste of Swift concepts you'll cover

Basics

Booleans

Numbers

Characters and Strings

Conditionals

Ternary operator

Arrays

Ranges

for loops

Tuples

Optionals

Function Overloading

Multiple Return Values

Default Parameters

Variadic Parameters

Inout Parameters

Nested Functions

Escaping functions

Higher Order Functions

Dictionaries

Importing

String Methods

String Indexing

Methods

Self

Structs And Classes

Value and reference types

While and repeat loops

Control transfer

Conditionals Switch

Capturing

Closures

Shorthand arguments

Trailing closures

Enumerations

Classes

Conditionals Guard

Initializers

Loops

Opaque Indices

repeat while

Stored Properties

Strings

Structs

Dive into Swift practice challenges

Difference of Squares

Level 1

Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.

Gigasecond

Level 1

Given a moment, determine the moment that would be after a gigasecond has passed.

Hello World

Level 1

SlaveCode's classic introductory exercise. Just say "Hello, World!".

Leap

Level 1

Determine whether a given year is a leap year.

RNA Transcription

Level 1

Given a DNA strand, return its RNA complement.

Space Age

Level 1

Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.

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Swift

Master Swift with
Interactive Learning

Elevate your Swift skills through 124 curated exercises across 18 core concepts. Master problem-solving with a structured learning path designed for modern developers.

About Swift

Swift is a modern open source programming language that runs on macOS, Linux and on Windows.

Swift was developed initially by Apple to interoperate with their key frameworks, Cocoa and CocoaTouch, both of which are mostly implemented in Objective-C.

Apple refers to Swift as a "protocol oriented programming language" and has expressed the goal of eventually making Swift useful for everything from scripts to an operating system.

This Swift Tour is an introduction to the language on Apple's Public Developer Website.

Wikipedia's Swift Page giving a good, Wikipedia-styled overview.

Swift is documented in The Swift Programming Language. There is also a version on the iBooks Store. The ePub version is also available on Swift.org.

Key Features of Swift

Modern

Swift incorporates the latest research on programming languages, combined with Apple's experience.

Designed for safety

Swift eliminates entire classes of unsafe code.

Fast and powerful

From its earliest conception, Swift was built to be fast.

Great first language

Swift was designed to be anyone’s first programming language.

Cross platform

Support Apple platforms, Linux, and Windows.

Open source

Swift is open-source and developed in the open at Swift.org.

Modern

Swift incorporates the latest research on programming languages, combined with Apple's experience.

Designed for safety

Swift eliminates entire classes of unsafe code.

Fast and powerful

From its earliest conception, Swift was built to be fast.

Great first language

Swift was designed to be anyone’s first programming language.

Cross platform

Support Apple platforms, Linux, and Windows.

Open source

Swift is open-source and developed in the open at Swift.org.