Learn JavaScript and make websites interactive. This course covers everything from basic syntax to DOM manipulation - giving you the skills to build dynamic web experiences that users actually engage with.
Earn a recognized certificate - exam included, ready to add to your LinkedIn and resume
Build interactive web pages - master the language powering every modern website
No experience required - structured for complete beginners
Learn at your own pace - self-paced with no deadlines
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Become a Certified JavaScript Developer with W3Schools.
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Overview of the Training Modules
Topic
Description
JavaScript Home
Start learning JavaScript
JavaScript Introduction
Learn what JavaScript is
JavaScript Where To
Where to place JavaScript
JavaScript Output
Ways to display output
JavaScript Statements
Understanding JavaScript statements
JavaScript Syntax
How JavaScript is structured
JavaScript Comments
Add comments in JavaScript
JavaScript Variables
Declaring variables in JavaScript
JavaScript Let
Using let for variable declaration
JavaScript Const
Using const for constants
JavaScript Operators
Using operators in JavaScript
JavaScript Arithmetic
Performing arithmetic operations
JavaScript Assignment
Using assignment operators
JavaScript Data Types
Understanding JavaScript data types
JavaScript Functions
Creating and using functions
JavaScript Objects
Working with objects
JavaScript Events
Handling JavaScript events
JavaScript Strings
Working with text in JavaScript
JavaScript String Methods
Methods for manipulating strings
JavaScript String Search
Searching strings in JavaScript
JavaScript String Templates
Using template literals
JavaScript Numbers
Handling numbers in JavaScript
JavaScript BigInt
Using BigInt for large numbers
JavaScript Number Methods
Manipulating numbers
JavaScript Number Properties
Understanding number properties
JavaScript Arrays
Using arrays in JavaScript
JavaScript Array Methods
Methods for manipulating arrays
JavaScript Array Search
Searching arrays
JavaScript Array Sort
Sorting arrays
JavaScript Array Iteration
Iterating over arrays
JavaScript Array Const
Using const with arrays
JavaScript Dates
Handling dates in JavaScript
JavaScript Date Formats
Formatting dates
JavaScript Date Methods
Methods for working with dates
JavaScript Set Methods
Working with Set objects
JavaScript Math
Using JavaScript math functions
JavaScript Random
Generating random values
JavaScript Booleans
Working with true/false values
JavaScript Comparisons
Comparing values
JavaScript If Else
Using if/else statements
JavaScript Switch
Using switch statements
JavaScript Loops
Using loops in JavaScript
JavaScript Break and Continue
Controlling loop execution
JavaScript Sets
Working with Set objects
JavaScript Maps
Using Maps in JavaScript
JavaScript typeof
Finding data types
JavaScript Type Conversion
Converting between data types
JavaScript Bitwise
Using bitwise operators
JavaScript RegExp
Using regular expressions
JavaScript Errors
Handling errors
JavaScript Scope
Understanding scope
JavaScript Hoisting
Understanding hoisting
JavaScript Strict Mode
Using strict mode
JavaScript this Keyword
Using the "this" keyword
JavaScript Arrow Functions
Using arrow functions
JavaScript Classes
Creating classes in JavaScript
JavaScript Modules
Using JavaScript modules
JavaScript JSON
Working with JSON
JavaScript Debugging
Debugging JavaScript code
JavaScript Best Practices
Writing better JavaScript
JavaScript Performance
Optimizing JavaScript code
JavaScript Versions
Understanding JavaScript versions
JavaScript HTML DOM
Manipulating the DOM
JavaScript Browser DOM
Interacting with the browser
JavaScript Web APIs
Using Web APIs
JavaScript AJAX
Making AJAX requests
JavaScript vs. jQuery
Comparing JavaScript and jQuery
JavaScript Graphics
Drawing graphics in JavaScript
Get Your Certificate
W3Schools has been a leading authority in web development education for over 20 years, providing comprehensive resources and training for developers worldwide. This recognition and credibility within the industry make our certifications in demand.
Course overview
Course fee:
$76
Course level:
Beginner
Time to complete:
80 hours
Course format:
Self paced
Language:
English
Prerequisites:
None
Exam and Certification:
Included
Number of certificates:
1
Certificate name:
Certified JavaScript Developer
Exam format:
Multiple choice
Certification skill level:
Intermediate (40%), Advanced (75%) and Professional (90%)
It was good to know that W3schools had a cyber security course to get certified in. I wish they had other courses like A+, Network, Security, etc. to get certified in. Thank you W3schools!
Looking forward to adapting and adopting what I have learned to be flexible and ready for any on-the-job tasks. Thank you for this opportunity to continue to learn and grow.
I’m currently learning C, and I have to say that W3Schools is a great website for learning programming. The interactive coding exercises, combined with the excellent documentation, make the learning experience much more effective and significantly speed up the learning process.
A great Python certification. The questions are relevant, practical, and cover real Python concepts. I passed with 96% and would definitely recommend it.
It was not easy at times but I like my certificate. Hereby I attach an image that shows me during the learning process. This made me a lot of money and I can buy some Vietnamese food and new Dacia Logan.
W3 school has a systematic aproach to study a topic. Having received a Certification of completion in SQL, I've made myself stand out of my colleagues at work (non-IT field).
Absolutely amazing! Fairly educative and practical, with a very easy and straightforward UX/UI and constant reviews and upgrades / updates to all the content in the tutorials as well as excellent and practical examples, exercises, quizzes and much much more! It is the foundation base to all Web developers and designers. Highly recommend!
This certification with adaptive exam is an excellent way to prove knowledge, there was some complex multiple choice questions and code samples with specific results that require execute the code to verify results. I think it was great. Thank you!
I glad I enrolled in this course, already I am becoming more confident with my technical skills, the exercises, challenges and the final exams are really well structured , I appreciate the W3schools community for that and making learning well structured, I was confused of where to begin from but now I have a clear road map, and I am learning with it, the league is also something I really like the competition.
I loved the experience. Nothing could have helped me more and the python certification exam has helped me to be able to reach those boundaries that have pressed me in. Thanks to W3Schools, I have finally been able to attain the certifications that I need to be able to earn a position as a freelance software developer with lots of jobs already lined up for me at a stunning rate. Thank you W3Schools!
I very much enjoyed the experience and could not have asked for better. Pertaining to W3Schools helped me to achieve my dreams and become a freelance software developer!
The "Learn Pandas" course was excellent. Pandas was created by esteemed Sir Wes McKinney in 2008. I learned about Series, Data Frames, reading CSV and JSON files, and analyzing and cleaning data. Cleaning data involves dealing with empty cells, data in the wrong format, wrong data, and removal of duplicates. I also learned about correlations and plotting. In plotting I learned about scatter plots and histograms. The course was a completely new learning experience. Thanks a lot.
My experience studying with w3Schools over the years has been fantastic. It has everything: theory explained in concise sentences, a multitude of examples that you can interact with and save in your personal space. I took my first steps with JavaScript here, fundamental steps to be able to move forward and enjoy the journey.
The "Learn NumPy" course is excellent. The exercises are very useful and helped to gain understanding of the subject. All the topics have been explained very nicely and in a lucid manner. I learned about array creation, data types, indexing, and slicing. NumPy arrays are multidimensional. NumPy stands for Numerical Python and was created in 2005 by the respected Sir Travis Oliphant. NumPy is very interesting and challenging. Revision is needed to retain the concepts and the syntax. Sound knowledge of NumPy will help an aspiring data scientist to succeed in his career. I also learned about copy and view, shape, reshape, iterating, split, sort, and filter. Learned about the functions nditer() and ndenumerate() used in iteration. The topics on random numbers included random number generation of types integer and float and continuous and discrete probability distributions like Normal, Binomial, and Poisson. Probability density functions also included Uniform, Multinomial, Rayleigh, and Zipf. Some of the topics covered in Ufuncs are add, subtract, multiply, divide, divmod, sum, prod, cumsum, LCM, GCD, and Set Operations. ufuncs stands for "Universal Functions," and it performs the element-wise mathematical operations. Thanks.
What is the difference between a course and a certificate?
When you complete the course requirements, including the final exam, you will get a certification of completion. Getting a certificate proves your commitment to improving your skills.
Tip: If you are confident in your skills already and have followed the free tutorials you can also enrol directly to complete the final exam for the same certification here: https://campus.w3schools.com/collections/certifications
Our certificates are not meant to replace formal higher education but provide a cheaper, convenient way of documenting your skills. We cannot guarantee that the certifications will get you a job. We would recommend that you work on a portfolio showcasing your skills that you can present during interviews. Your portfolio, in addition to certificates, will help any employer to judge your skills and commitment.
How long time does it take to access the exam?
There is no waiting time. Immediately after completing your purchase you are sent an email link which gives you instant access to the exam.
What are the certificate levels?
There are three different levels: intermediate, advanced and professional.
Intermediate is 40%, Advanced is 75%, and Professional is 90%.
How many exam attempts do I have?
You have 3 attempts per exam. You can choose when to take each attempt. If you don't pass, you can study and take it again at your convenience.
Can I take the exam online?
All our exams are taken online with multiple choice questions. You do not need to be physically present.
How long does the certificate last?
The certificate never expires. You don't need to renew it.
How can I verify the authenticity of my certificate from W3Schools?
The certificate will be issued in your name, and its authenticity can be verified through W3Schools by using the unique link or QR code provided with it.
Do you offer payment plans?
Yes, W3Schools offers payment plans to make our paid courses, exams and certificates more affordable. You can choose between a 3-month or 6-month payment plan to spread the cost of your course over several months. This allows you to manage your finances more easily. Read more here:
