JavaScript Core

Name: JavaScript Core
Rating: 4.5 (1 reviews)

4.530 hours1K learnersBeta

Gain proficiency in one of the most demanding areas of software engineering and apply your frontend development skills to your future career. This course covers foundational knowledge of JavaScript, expanding beyond the basics.

Provided by

JetBrains Academy

See course content2 weeks ago last updated

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Our students are building their future at:

Study at your own pace

Fit learning around your schedule. Suitable for all levels.

Learn from the experts

Short, practical text lessons by seasoned developers.

Become job-ready

Integrated with professional tools by JetBrains.

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What you'll learn

This course provides you with the essential knowledge needed to master proficiency in JavaScript. By diving into AJAX and mastering ES5 and ES6 intricacies, understanding Object-Oriented Programming, and more, you'll strengthen your frontend development skills, setting the stage for mastering various JS frameworks.

In this course, you'll:

Grasp the principles of OOP and apply them to JavaScript programs;
Fetch data from APIs using JavaScript;
Recall crucial concepts like AJAX and ES5/ES6 features;
Manage user input and manipulate the Document Object Model (DOM);
Apply your knowledge to create well-structured programs and adhere to coding conventions.

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Learn by doing

# 1

Apply knowledge into practice

You already know the theory. Now it's time to code like you do at work—in a professional IDE, with real project constraints, solving problems that actually matter. Welcome to software engineering as it should be.

# 2

Navigate complexity with surgical precision

Most developers waste months learning random concepts without seeing how they connect. Our interactive Knowledge Map fixes this. It shows exactly how every programming concept relates to others, helping you build a structured mental model of coding.

# 3

Copy the best. Then improve.

Here's what top engineers do that others don't: they study other people's code obsessively. When you get stuck on Hyperskill, you can explore solutions published by other developers. See their exact code. Understand their approach. Learn their tricks.

# 4

Code review that actually makes you better

We stripped code review down to what actually matters: does your solution work? Have you handled the edge cases? Is there a cleaner way to write this? Hyperskill acts like a competent reviewer who actually tests your code. Not genius-level analysis, not architecture debates — just solid feedback on making your code better.

Elevate your engineering mastery through real-world challenges

Master advanced engineering concepts through ambitious projects. Each project deepens your expertise and transforms you from an experienced engineer into an exceptional one.

URL Shortener

Some website URLs can be very long — it would be good if we could shorten them. In this project, you will create a page to shorten website URLs. Practice manipulating the DOM using HTML & JS and build a web page.

Graduate

Dog Glossary

Isn’t it nice to see pictures of cute dogs on the Internet? In this project, create a page to show random dog pictures and a list of dog breeds using a public API. Practice handling APIs, HTML & JS to build a web page.

Graduate

Explore all projects

Topics covered by this course

Basics

27 topics

Working with data

24 topics

Frontend

16 topics

Fundamentals

11 topics

Interaction with a browser

6 topics

Interaction with backend

6 topics

Advanced features

4 topics

Code style

3 topics

Learn from the industry experts

JetBrains Academy

JetBrains Academy is a part of JetBrains, a global software company specializing in the creation of intelligent, productivity-enhancing tools for software developers and teams. With years of expertise in software development and education, JetBrains Academy empowers more than a million people worldwide to learn and teach computer science, and help organizations inspire their teams to reach their goals in tech. Professional development tools play a big role in computer science education. This is why JetBrains Academy courses offer integration with JetBrains IDEs. This integration assists learners in getting experience with real development processes to streamline their learning curve at future work.

Your peers think Hyperskill rocks

Andrei

9 months ago

Good track with interesting projects. But tests are still buggy...

Aleeee

10 months ago

Great course, some advanced topics explanations are poorly written and confusing

Kondwani Paul Kufeyani

12 months ago

I learned a lot of JavaScript concepts plus the projects were beginner friendly and quiet exciting to complete. Recommend this course if you're looking to gain a solid understanding of the basics .