Free
CourseLearn JavaScript: Best Practices
Learn how JavaScript works under the hood and level up your code composition with various design patterns.
Skill level
BeginnerTime to complete
Approx. 1 hourCertificate of completion
Included with paid plansPrerequisites
None
About this course
Continue your JavaScript learning journey with Learn JavaScript: Under the Hood & Best Practices. Gain an insight into how your JavaScript program executes under the hood. You’ll also level up the code composition of your applications by learning about different programming design patterns.
Syllabus
The 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.
Meet the creator of the course

Kenny Lin
Web Development Domain Manager at Codecademy Learn JavaScript: Best Practices course ratings and reviews
92 ratings
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- 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
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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.