Swift Basics

Learn the requirements of Swift, look at the Xcode development environment, and write your first Swift program in this beginner-friendly lesson.

Mark Lassoff, the founder of Learn to Program, demonstrates how to create a new Xcode project for either iOS or OSX, then explores the Xcode interface.

Discover the basics of variables, constants, and variable manipulations, as well as how each of these work in the Swift programming lesson.

Explore some of the common variable types of the Swift programming language, including integers, floating points, doubles, Booleans, and more.

Learn how to use arithmetic operators in the Swift programming language to perform addition, subtraction, multiplication, and division in this lesson.

In this lesson on type casting, learn general properties of assigned values in the Swift programming language, plus learn to change variable types with ease.

Learn how Swift allows you to use strings to insert constants, variables, and expressions into longer strings in a process known as string interpolation.

Learn to Program founder Mark Lassoff discusses how to perform a basic control flow with an if statement using the Swift programming language.

Take your knowledge of the Swift programming language to the next level by learning how to create complex conditionals and compound if statements.

Switch statements are similar to if else statements, but they don't require as much syntax. Learn how to set them up and test them using the Swift language.

Explore some of the fundamental characteristics of while loops in Swift, learn to code them, and explore common types of errors often found inside of them.

Similar to while loops, for loops are another type of loop that are convenient to use within Swift. Learn how to set them up in this lesson.

For in loops are extremely useful in the Swift programming language. Learn how to set one up with an array, test it, and even use it as a counter.

Learn all about setting up, writing and using arrays in the Swift programming language, plus understand how to use standard for loops with arrays, and more.

Mark Lassoff, the founder of Learn to Program, introduces array count and array slice in this lesson. Learn how each is written and how they are used.

Learn about some of the most powerful functions available with arrays inside of Swift, including the isEmpty, append, insert, and remove functions.

Mark Lassoff from Learn to Program discusses the basics of using dictionaries, then demonstrates how to set one up using the Swift programming language.

Discover how to add a new key to a dictionary, replace a value within one, and remove a value from a dictionary using the Swift programming language.

Mark discusses the basics of functions in the Swift programming language, shows how to set up a function, and explains their value to you as a developer.

Write a simple version of a function that takes arguments, then learn how this parameterized function type can also process multiple arguments.

Function returns make functions extremely useful and flexible, and they can be used in a number of different situations. Learn how to write them using Swift.

Learn about inside and outside functions in the Swift programming language, discover the differences between global and local variables, and more.

Learn to Program founder Mark Lassoff demonstrates how to write a simple nested function using the Swift programming language in this lesson.

When working with lists of related data for a type, enumerations are very helpful. Learn how to write a simple enumeration in Swift in this lesson.

Learn how to set up and create a class, discover what class methods and getters are, and write some simple code to create a simplification of a real dog.

Now that you know how to set up classes in Swift, learn how to differentiate each of the objects within a class and give them unique properties with subclasses.

Discover the role of protocols in Swift code, learn what is required to make them work, and see how they can be applied to more than one class.

Using a Fahrenheit-Celsius temperature conversion as an example, learn how to set up, apply, and make changes to an extension in this Swift programming lesson.

Want to learn how to take an existing operator and give it new functionality in Swift? Learn how to apply operator overloading in this lesson!

When working in Swift, it's possible to use generics to reduce the number of functions in an application. Learn how to write a generic function in this lesson.

Emojis have taken the world by storm, but did you know you can even include these lovable illustrations in your Swift code? Learn how in this lesson.

Begin working on a simple iOS application that can run on either an iPad or iPhone, and learn how to get started in an Xcode development environment.

Learn what outlets and actions are, add them to your app in Xcode, and write the Swift code for a simple iOS app that greets a user with his or her name.

Now that you've finished coding your Swift app for iOS, test it using the Xcode development software. Learn how to access and use the simulator in this lesson.