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.

  • Daily plan, 45-60 min a day
  • 7 lessons + 21 exercises
  • AI tutor included
duration21-day sprint
Topics7 total
Exercises21 total
levelAdvanced
  • No prior coding experience required
  • Practice tasks every day
  • Build impressive portfolio project

What you will learn

A powered by mentors Advanced plan with structured subtopics, quizzes, and practice tasks.

01Challenge

JavaScript engine internals

Understand V8's JIT compilation, garbage collection, and hidden classes.

02Challenge

Performance: lazy loading, web workers, and WASM

Offload CPU work to workers, lazy-load assets, and integrate WebAssembly.

03Challenge

Design patterns in JavaScript

Implement Observer, Factory, Module, and other patterns idiomatically.

04Challenge

Testing with Vitest and Testing Library

Write unit, integration, and snapshot tests with modern tooling.

05Challenge

Proxies, Reflect, and metaprogramming

Use Proxy and Reflect to build reactive systems and intercept operations.

06Challenge

Micro-frontend architecture

Split large frontends into independently deployable micro-apps.

07Challenge

Capstone: plugin-based architecture

Build an extensible application using advanced patterns and testing.

Watch the full learning flow

From picking a topic to finishing the first lesson — see the exact path you’ll take.

Is the course right for you?

This is for you if...

  • You want a clear, structured way to learn instead of jumping between random videos and articles.
  • You want to build real skills, not just watch lessons.
  • You are ready to practice regularly and improve step by step.
  • You want guidance, feedback, and a learning path that keeps you moving forward.
  • You want to reach a real outcome you can use in work, study, or personal projects.

This is not for you if...

  • You want instant results without putting in the work.
  • You are looking only for passive content to watch.
  • You already know the material covered in this course.
  • You are not ready to practice consistently.
  • You expect the course to do the work for you.

Loved by Lifelong Learners

See how students, professionals, and forward-thinkers are upgrading their minds with Kavka.

Kavka helped our engineering team master new frameworks without the typical 'tutorial hell' phase. The plans are exactly what we need: high-intent, actionable, and remarkably consistent.

Adam K.NovaStack

I’ve tried countless courses, but most are just passive watching. Kavka's practice tasks felt like real engineering work, forcing me to solve problems rather than just mimicking code. The lessons actually stuck this time.

Miguel TorresBackend Engineer

The structured learning experience here is just brilliant. Just thirty minutes a day and I was shipping complex features again. It keeps me honest and ensures I don't skip the fundamentals just to reach the 'fun' parts.

Emily ChenUX Designer

Simple pricing. Real skill growth.

Free

$0

Best for getting started

  • Access core modules for one chosen skill
  • 3 free practice tasks to explore how Kavka works
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Premium

$19$12/month

Best for intensive skill growth

  • Unlock all modules
  • Unlimited practice tasks
  • Priority support
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