Free
CourseLearn JavaScript: Functions and Scope
Define and reuse logic with functions and scope variables for effective data access.
This course includes
This course includes
Skill level
BeginnerTime to complete
Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary3 hoursProjects
3Prerequisites
None
About this course
Continue your JavaScript learning journey with Learn JavaScript: Functions and Scope. Define and reuse logic with functions and scope variables for effective data access to build the foundation for complex JavaScript programs.
Syllabus
2 lessons • 3 projects • 2 quizzesCertificate of completion available with Plus or Pro
Earn a certificate of completion and showcase your accomplishment on your resume or LinkedIn.
Projects in this course
- practice Project
Rock, Paper, or Scissors
In this project, we're going to practice conditionals in JavaScript so you can hone your skills and feel confident taking them to the real world. Why? Given a certain input you want to return a certain output. If this than that. - practice Project
Sleep Debt Calculator
In this project, we're going to practice functions in JavaScript so you can hone your skills and feel confident taking them to the real world. Why? Functions help us build separation of concerns so our code isn't one long function. - practice Project
Training Days
In this project, we're going to practice scope in JavaScript so you can hone your skills and feel confident taking them to the real world. Why? Scope determines the visiblity of variables and other resources in your code.
Meet the creator of the course
Kenny Lin
Software Engineer at CodecademyEarn a certificate of completion
Show your network you've done the work by earning a certificate of completion for each course or path you finish.- Show proofReceive a certificate that demonstrates you've completed a course or path.
- Build a collectionThe more courses and paths you complete, the more certificates you collect.
- Share with your networkEasily add certificates of completion to your LinkedIn profile to share your accomplishments.
Learn JavaScript: Functions and Scope course ratings and reviews
206 ratings
- 5 stars
- 4 stars
- 3 stars
- 2 stars
- 1 star
- 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
Join over 50 million learners and start Learn JavaScript: Functions and Scope today!
Looking for something else?
Related resources
- Article
Why JavaScript Is Essential
Learn what is JavaScript and why it is the most popular programming language. Discover its history, web development role, backend capabilities, and future potential in technology. - Article
Why learn JavaScript foundations?
Learn more about why you should build a strong foundation in JavaScript when you first learn the language. - Article
What is JavaScript?
What is JavaScript, and how does it work?
Related courses and paths
- Free course completed!
Learn JavaScript
Learn how to use JavaScript — a powerful and flexible programming language for adding website interactivity.Beginner Friendly15 hours - Skill path
Create a Back-End App with JavaScript
Learn how to build back-end web APIs using Express.js, Node.js, SQL, and a Node.js-SQLite database library.Includes 8 CoursesWith CertificateBeginner Friendly30 hours - Free course completed!
Learn Intermediate JavaScript
Take your JavaScript knowledge to the next level by learning how to use advanced functions to create more efficient programs.Intermediate11 hours
Browse more topics
- Web development5,334,280 learners enrolled
- Code foundations7,956,807 learners enrolled
- JavaScript3,032,107 learners enrolled
- Computer science6,424,927 learners enrolled
- Data science4,878,740 learners enrolled
- Python3,936,340 learners enrolled
- For business3,732,044 learners enrolled
- Data analytics2,820,144 learners enrolled
- IT2,778,903 learners enrolled
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.