Coding Languages

Learn JavaScript

3 plans — 20 lessons

Through practical lessons and AI guidance, you’ll build your skills step by step. By the end, you’ll be able to write real code, solve everyday problems, and build practical projects.

Beginner Path10-day sprint
10-day sprint

Go from complete beginner to confident in JavaScript in 10 days

Through practical lessons and AI guidance, you’ll build your skills step by step. By the end, you’ll be able to write real code, solve everyday problems, and build practical projects.

  • JavaScript setup and runtime
  • Variables, types, and operators
  • Functions and scope
  • +3 more topics
Start plan
Intermediate Path14-day sprint
14-day sprint

Go from basic to advanced in JavaScript in 14 days

Through practical lessons and AI guidance, you’ll build your skills step by step. By the end, you’ll be able to solve real-world tasks, work more efficiently, and build stronger projects.

  • Promises, async/await, and the event loop
  • ES modules and modern bundling
  • Prototype chain and this binding
  • +4 more topics
Start plan
Advanced Path21-day sprint
21-day sprint

Go from strong JavaScript skills to expert-level mastery in 21 days

Through practical lessons and AI guidance, you’ll build your skills step by step. By the end, you’ll be able to solve complex problems, optimize your work, and build advanced real-world solutions.

  • JavaScript engine internals
  • Performance: lazy loading, web workers, and WASM
  • Design patterns in JavaScript
  • +4 more topics
Start plan

What You'll Learn

01Foundation

JavaScript setup and runtime

Run scripts in the browser and Node.js, and learn the basics.

setupruntimebasics
02Foundation

Variables, types, and operators

Understand primitives, coercion, and core operators.

typesoperatorssyntax
03Core

Functions and scope

Use functions, closures, and scope to structure code.

functionsscopeclosures
04Core

Arrays, objects, and JSON

Manipulate collections and exchange data with JSON.

arraysobjectsjson
05Core

DOM basics and events

Make pages interactive with DOM APIs and event handlers.

domeventsbrowser
06Challenge

Mini project: interactive widget

Build a small interactive UI component.

projectuipractice

Go from curious to capable

10 days of structured JavaScript — variables, DOM, events, and an interactive widget you'll actually build.

Start learning

I'd tried three JS courses before. Kavka's plan was the first one where I felt real progress by day 3.

— Tom B., frontend learner

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