Coding Languages

Learn JavaScript

3 plans — 20 lessons

Master variables, DOM basics, and interactive web behaviors fast.

Beginner Path10-day sprint

10-day sprint

Learn JavaScript in 10 days

Master variables, DOM basics, and interactive web behaviors fast.

JavaScript setup and runtime
Variables, types, and operators
Functions and scope
+3 more topics

Start plan

Intermediate Path14-day sprint

14-day sprint

Intermediate JavaScript in 14 days

Deepen your JS skills with async patterns, ES modules, the prototype chain, and real API integration.

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

Advanced JavaScript in 21 days

Go deep: design patterns, performance, testing, and how the JS engine works under the hood.

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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