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JS Tutorial

JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS BigInt JS Number Methods JS Number Properties JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words

JS Versions

JS Versions JS 2009 (ES5) JS 2015 (ES6) JS 2016 JS 2017 JS 2018 JS 2019 JS 2020 JS 2021 JS IE / Edge JS History

JS Objects

Object Definitions Object Properties Object Methods Object Display Object Accessors Object Constructors Object Prototypes Object Iterables Object Sets Object Maps Object Reference

JS Functions

Function Definitions Function Parameters Function Invocation Function Call Function Apply Function Bind Function Closures

JS Classes

Class Intro Class Inheritance Class Static

JS Async

JS Callbacks JS Asynchronous JS Promises JS Async/Await

JS HTML DOM

DOM Intro DOM Methods DOM Document DOM Elements DOM HTML DOM Forms DOM CSS DOM Animations DOM Events DOM Event Listener DOM Navigation DOM Nodes DOM Collections DOM Node Lists

JS Browser BOM

JS Window JS Screen JS Location JS History JS Navigator JS Popup Alert JS Timing JS Cookies

JS Web APIs

Web API Intro Web Forms API Web History API Web Storage API Web Worker API Web Fetch API Web Geolocation API

JS AJAX

AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples

JS JSON

JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP

JS vs jQuery

jQuery Selectors jQuery HTML jQuery CSS jQuery DOM

JS Graphics

JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3.js

JS Examples

JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Certificate

JS References

JavaScript Objects HTML DOM Objects


W3Schools JavaScript Certificate


w3schools CERTIFIED . 2022   

W3Schools offers an Online Certification Program.

The perfect solution for busy professionals who need to balance work, family, and career building.

More than 50 000 certificates already issued!


Get Your Certificate »

w3schools CERTIFIED . 2022

W3Schools offers an Online Certification Program.

The perfect solution for busy professionals who need to balance work, family, and career building.

More than 50 000 certificates already issued!

Get Your Certificate »

Document your skills
Improve your career
Study at your own pace
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Trusted by top companies

Who Should Consider Getting Certified?

Any student or professional within the digital industry.

Certifications are valuable assets to gain trust and demonstrate knowledge to your clients, current or future employers on a ever increasing competitive market.

W3Schools is Trusted by Top Companies

W3Schools has over two decades of experience with teaching coding online.

Our certificates are recognized and valued by companies looking to employ skilled developers.

Save Time and Money

Show the world your coding skills by getting a certification.

The prices is a small fraction compared to the price of traditional education.

Document and validate your competence by getting certified!

Exam overview

Fee: 95 USD

Number of questions: 70

Requirement to pass: 75% correct answers

Time limit: 70 minutes

Number of attempts to pass: Two

Exam deadline: None

Certification Expiration: None

Format: Online, multiple choice

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Getting a certificate proves your commitment to upgrading your skills.

The certificate can be added as credentials to your CV, Resume, LinkedIn profile, and so on.

It gives you the credibility needed for more responsibilities, larger projects, and a higher salary.

Knowledge is power, especially in the current job market.

Documentation of your skills enables you to advance your career or helps you to start a new one.


How Does It Work?

  • Study for free at W3Schools.com
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Example certificate:

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Validate your certification with the link or QR code.

Check how it looks like in this Example.

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Document Your Skills

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