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Certification course

Learn JavaScript.

Learn JavaScript and make websites interactive.

4.8 · 874 reviews

$95Exam and certificate included

Full AccessEvery course and exam · $499

14-day money-back guaranteeInstant accessLifetime access

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  • BeginnerNo experience needed
  • 80 hoursAt your own pace
  • 68 modulesLessons, quizzes, exercises
  • Exam includedNo need to buy separately
  • W3Schools Hero1-year subscription included

Our learners work at

  • Microsoft
  • Google
  • Amazon
  • Meta
  • Netflix
  • NVIDIA
  • IBM
  • Oracle

What you'll learn

Real JavaScript skills, step by step.

Everything you need to use JavaScript with confidence, from the first line to real projects.

  • Learn how JavaScript works and how it is used in web development.
  • Make web pages interactive by typing and running JavaScript code.
  • Use variables to store and change data.
  • Use data types and operators to do logic and calculations.
  • Organize and reuse code by functions.
  • Conditions, like "if" and "else," let you control how a program runs. Learn how to use them.
  • Use loops (like for and while) to do things over and over again.
  • Learn how to use Document Object Model (DOM) to change HTML elements.
  • Make interactive user experiences by handling events like button clicks and form submissions.
  • Debugging JavaScript code.

Roles you'll be ready for

  • Front-End Developer
  • JavaScript Developer
  • Web Developer
  • Full Stack Developer
  • UI Developer
  • React Developer
  • Node.js Developer
  • Mobile App Developer
  • Software Engineer
  • Web Application Developer
  • QA Automation Engineer
  • Technical Product Manager
  • Freelance Web Developer
  • Game Developer

Syllabus

Everything the course covers.

11 chapters · 68 modules · 80 hours

01Getting started7 modules
  • JavaScript Home
  • JavaScript Introduction
  • JavaScript Where To
  • JavaScript Output
  • JavaScript Statements
  • JavaScript Syntax
  • JavaScript Comments
02Variables, operators and data types7 modules
  • JavaScript Variables
  • JavaScript Let
  • JavaScript Const
  • JavaScript Operators
  • JavaScript Arithmetic
  • JavaScript Assignment
  • JavaScript Data Types
03Functions, objects and events3 modules
  • JavaScript Functions
  • JavaScript Objects
  • JavaScript Events
04Strings and numbers8 modules
  • JavaScript Strings
  • JavaScript String Methods
  • JavaScript String Search
  • JavaScript String Templates
  • JavaScript Numbers
  • JavaScript BigInt
  • JavaScript Number Methods
  • JavaScript Number Properties
05Arrays6 modules
  • JavaScript Arrays
  • JavaScript Array Methods
  • JavaScript Array Search
  • JavaScript Array Sort
  • JavaScript Array Iteration
  • JavaScript Array Const
06Dates, math and booleans8 modules
  • JavaScript Dates
  • JavaScript Date Formats
  • JavaScript Date Methods
  • JavaScript Set Methods
  • JavaScript Math
  • JavaScript Random
  • JavaScript Booleans
  • JavaScript Comparisons
07Conditions and loops4 modules
  • JavaScript If Else
  • JavaScript Switch
  • JavaScript Loops
  • JavaScript Break and Continue
08Sets, maps and types5 modules
  • JavaScript Sets
  • JavaScript Maps
  • JavaScript typeof
  • JavaScript Type Conversion
  • JavaScript Bitwise
09Errors, scope and modern syntax9 modules
  • JavaScript RegExp
  • JavaScript Errors
  • JavaScript Scope
  • JavaScript Hoisting
  • JavaScript Strict Mode
  • JavaScript this Keyword
  • JavaScript Arrow Functions
  • JavaScript Classes
  • JavaScript Modules
10JSON, debugging and best practices5 modules
  • JavaScript JSON
  • JavaScript Debugging
  • JavaScript Best Practices
  • JavaScript Performance
  • JavaScript Versions
11DOM, browser and web APIs6 modules
  • JavaScript HTML DOM
  • JavaScript Browser DOM
  • JavaScript Web APIs
  • JavaScript AJAX
  • JavaScript vs. jQuery
  • JavaScript Graphics

Your certificate

Become a Certified JavaScript Developer.

A credential from the site that has taught the web since 1999.

  1. Learn

    Lessons, quizzes and exercises. No deadlines.

  2. Pass the exam

    Online, multiple choice. 3 attempts, results instantly.

  3. Share it

    On LinkedIn and your CV. Employers verify it by link or QR code.

Your score sets your level: Intermediate 40% · Advanced 75% · Professional 90%

Certified JavaScript Developer

Also included

A year of W3Schools Hero subscription.

Keep learning and building long after the exam. Worth $120, included.

  • Unlimited learning in the app

    Full access on iOS and Android. Learn anywhere.

  • Build with Spaces

    Your own space to build, test and deploy real projects.

  • Ad-free W3Schools

    Learn on w3schools.com without ads.

  • Leaderboard and challenges

    Earn XP, keep your streak, compete with other learners.

Reviews

What learners say.

4.8 · 874 reviews

  • W3 Schools' 'Full Access' plan may be the best learning resource I've ever found. I've read books, followed various online tutorials, and completed university studies on the subjects, but W3 Schools' method is simply superior. Topics a...

    Ian B.Verified buyerUnited StatesFull Access

  • Practicing Python is awesome! I enjoy daily practice and it's so fun!!! W3school to me is a great platform for all Tech people Thank you so much

    Samuel A.Verified buyerGhanaPython

  • Muy buena experiencia. El curso de SQL tiene contenido claro y completo, y el examen de certificación me gustó especialmente por su nivel de dificultad y por combinar conocimientos teóricos y prácticos. Muy recomendable para reforzar y v...

    Guille G.Verified buyerArgentinaSQL

Pricing

One course, or all of them.

This course

Learn JavaScript

$95one-time

  • The full JavaScript course
  • JavaScript exam and certificate
  • 1 year of W3Schools Hero subscription
  • Lifetime access
14-day money-back guarantee, as long as no exam attempt is used.

Best value

Full Access

$499one-time

  • 45+ certifications
  • W3Schools Hero subscription for life
  • Lifetime access
  • New courses and exams included as we add them
Get Full Access 14-day money-back guarantee, as long as no exam attempt is used.

Questions? Answers.

Do you have a money-back guarantee?

Yes. If you are not satisfied, you get your money back within 14 days of purchase, as long as no exam attempts are used. Our refund policy.

How fast do I get access?

Instantly. Right after purchase you get an email with access to the course and the exam.

How does the exam work?

The exam is online and multiple choice. You get 3 attempts and choose when to take each one. Your score sets your level: Intermediate (40%), Advanced (75%) or Professional (90%).

Does the certificate expire?

No. The certificate never expires. It is issued in your name and employers can verify it with a unique link or QR code.

What is the difference between the course and the exam?

The course includes lessons, exercises, progress tracking and the exam. If you already know the subject, you can buy the exam only and go straight to certification.