Free
CourseLearn Swift: Arrays, Sets, and Dictionaries
Continue your Swift journey by learning these collection types: arrays, sets, and dictionaries!
Skill level
BeginnerTime to complete
Approx. 8 hoursCertificate of completion
Included with paid plansPrerequisites
None
About this course
Continue your Swift learning journey! Incorporate collection types that allow you to store data in a meaningful way. Arrays store elements and keep the ordering, sets can sort a collection of unique data, and dictionaries create unique key-value pairs. Having these concepts under your toolbelt will ensure that you are able to store, access, and manipulate valuable information.
Syllabus
3 lessons • 5 projects • 3 quizzesThe platform
Hands-on learning
Don’t just watch or read about someone else coding — write your own code live in our online, interactive platform. You’ll even get AI-driven recommendations on what you need to review to help keep you on track.
Projects in this course
- Project
Make a Mixtape 101
This is a chance to put your hard-earned Swift skills to the test. Use Swift’s array methods to curate your ultimate cassette mixtape. - Project
Palindrome
Create a Palindrome checker by iterating through an array. - Project
Caesar's Cipher
Use Swift arrays and loops to encrypt secret messages.
Meet the creator of the course

Kenny Lin
Web Development Domain Manager at Codecademy Reviews from learners
- The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.ChrisCodecademy Learner @ USA
- I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.RodrigoCodecademy Learner @ UK
- Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.John-AndrewCodecademy Learner @ USA
Our learners work at
Unlock additional features with a paid plan
Practice Projects
Guided projects that help you solidify the skills and concepts you're learning.Assessments
Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.Certificate of Completion
Earn a document to prove you've completed a course or path that you can share with your network.