Free
Course

Learn Intermediate JavaScript

Take your JavaScript knowledge to the next level by learning how to use advanced functions to create more efficient programs.

4.4 out of 5 stars
This course includes
90,731 learners enrolled
This course includes
  • Skill level

    Intermediate
  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
    10 hours
  • Projects

    5
  • Prerequisites

    1 course
    We suggest you complete the following courses before you get started with Learn Intermediate JavaScript:
    • Learn JavaScript

About this course

You’ve learned the programming fundamentals using the latest JavaScript syntax to create dynamic web apps, but you want to do more! With Intermediate JavaScript, you’ll understand how to incorporate JavaScript in bigger and more complex web apps using concepts such as classes, promises, async/await, and requests.

Syllabus

6 lessons • 5 projects • 6 quizzes
  • Certificate of completion available with Plus or Pro

    Earn a certificate of completion and showcase your accomplishment on your resume or LinkedIn.

The platform

Hands-on learning

Animated GIF of an AI provided error explanation within Codecademy's learning environment
An AI-generated hint within the instructions of a Codecademy project
Animated GIF of Codecademy's Job Readiness Checker tool generating a compatibility report for a senior software engineer role
Animated GIF of building a phone screen interview using Codecademy's Interview Simulator
A fill-in-the-blank JavaScript question in a Codecademy assessment
Meet the creator of the course
Jiwon Shin
Senior Curriculum Developer at Codecademy
Jiwon is a Senior Curriculum Developer at Codecademy. She has created courses across the web development catalog on languages such as JavaScript, PHP, and CSS, frameworks like React and Node.js, and the Front-End Engineer Career Path. She also created courses on p5.js, build tools, and Intro to UI and UX Design.

Earn 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 Intermediate JavaScript course ratings and reviews

4.4 out of 5 stars
1,934 ratings
  1. 5 stars
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  5. 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.
    Chris
    Codecademy 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.
    Rodrigo
    Codecademy Learner @ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    John-Andrew
    Codecademy Learner @ USA

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Frequently asked questions about Intermediate JavaScript

  • JavaScript is a client-side scripting language. It’s flexible and versatile, working well with other languages and offering a wide array of libraries and frameworks that streamline development and make it easier to get a project off the ground.

Join over 50 million learners and start Learn Intermediate JavaScript today!

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.