Swift Cheat Sheet

by Chris Ching

Cheat Sheets: Swift Currie. Workers' Compensation Calculators. Georgia Workers' Compensation Law & Practice. Swift Currie is pleased to provide the following quick reference cheat sheets. Should you have questions about any of the information, please contact one of our attorneys. Swift is Apple’s new programming language aimed for developers to use with iOS and OS X devices. Swift has been designed both to work alongside its predecessor, Objective-C, and to one day be Objective-C’s replacement. When you develop apps for iOS or OS X, you use the Xcode development tool (technically an Integrated Development Environment,. Swift Cheat Sheet Topics The Basics Constants & Variables Comments Semicolons Integers Floating Point Numbers Type Safety and Type Inference Numeric Literals Numeric Type Conversion Type Aliases Booleans Tuples Optionals Assertions Basic Operators Overview Terminology Assignment Operator Arithmetic Operators Compound Assignment Operators Comparison Operators Ternary.

This up to date guide will teach you the basics of the Swift programming language.

If you’ve ever tried to learn Swift, you’ll know that there are tons of outdated resources floating around the internet because Swift is in its infancy and Apple updates the language so often.

It’s a tremendous effort, but I’ve kept the following tutorials up to date and will continue to do so!

With that said, let’s dive into the lessons!

Psst! Download and print out my trusty Swift Syntax Cheat Sheet.

Table of Contents

Sheet

Apple Swift Code


1. Variables
In this lesson, you’ll start at the very beginning with variables.

2. Data Types
This lesson will show you some of the common data types you work with when building apps.

3. If Statements
Learn how to write code that can make decisions!

Apple Swift Programming Language

4. Switch Statements
Switch statements are another way for your code to make decisions.

5. Loops
Sometimes you just need to repeat something. Loops are just for that!

6. Loops Part 2
More on loops…

7. Functions
In this lesson, you’ll learn how to organize your code into actionable functions.

8. Functions Part 2
There’s a lot to functions! This lesson goes into more depth.

9. Classes
Classes are another way to organize your code. This lesson is a must!

10. Classes Part 2 – Inheritance
More on classes…

11. UIKit
The UIKit framework provides a lot of reusable code for us!

12. Initializers
Initializers are important to understand along with classes.

13. Optionals
In this lesson, you’ll learn what an optional is.

14. Properties
Properties are kind of like variables but in the context of a class.

15. Initializers Part 2
More on initializers…

16. Arrays
You’re starting to learn about collection types now! Arrays are first.

17. Dictionaries
Dictionaries are another collection type.

Challenges

Want to test what you’ve learned? Take a crack at the challenges below!

You may have to review some of the lessons to refresh your memory but I guarantee that completing these challenges will reinforce what you’ve learned in the lessons above.

When you complete all of the challenges, get your name on the Wall of Fame in the next section!

Instructions

Challenge #1: The Lost Animal Challenge
In this challenge, you’ll write a function that searches two arrays to find an animal.
Challenge #2: The Caterpillar Challenge
In this challenge, you’ll implement the missing function code to make this caterpillar go!
Challenge #3: The Library Challenge
In the toughest challenge of this series yet, you’ll complete the class definition to enable searching for books, checking in/out books and also checking for errors too!

Solutions

Get your name and Twitter profile mentioned here!

Step 1: Complete the challenges in the Challenges section above.

Step 2: Click the card below Posesdaruma fields saddlery reviews. to send out the tweet! I’ll see your tweet and I’ll add your name below and a link to your Twitter profile.

I completed all the Learn Swift challenges! Try them here: https://codewithchris.com/learn-swift @CodeWithChrisClick To Tweet

After you complete the challenges, Click to Tweet above and pronounce your victory! I’ll add your name below: