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Basic JavaScript

JS Tutorial
JS Tutorial JS Introduction JS Where To JS Output
JS Syntax
JS Syntax JS Statements JS Comments
JS Variables
JS Variables JS Let JS Const JS Types
JS Operators
JS Operators JS Arithmetic JS Assignment JS Comparisons
JS If Conditions
JS Conditional JS If JS If Else JS Ternary JS Switch JS Booleans JS Logical
JS Loops
JS Loops JS Loop for JS Loop while JS Break JS Continue
JS Strings
JS Strings JS String Templates JS String Methods JS String Search JS String Reference
JS Numbers
JS Numbers JS Number Methods JS Number Properties JS Number Reference JS BigInt JS Bitwise
JS Functions JS Objects JS Dates
JS Dates JS Date Formats JS Date Get JS Date Set JS Date Reference
JS Arrays
JS Arrays JS Array Methods JS Array Search JS Array Sort JS Array Iterations JS Array Reference JS Array Const JS Typed Arrays JS Typed Methods JS Typed Reference
JS Sets
JS Sets JS Set Methods JS Set Logic JS Set WeakSet JS Set Reference
JS Maps
JS Maps JS Map Methods JS Map WeakMap JS Map Reference
JS Math
JS Math JS Math Reference JS Random
JS RegExp
JS RegExp JS RegExp Flags JS RegExp Classes JS RegExp Metachars JS RegExp Assertions JS RegExp Quantifiers JS RegExp Patterns JS RegExp Objects JS RegExp Methods
JS Data Types
JS Data Types JS typeof JS toString() JS Type Conversion
JS Errors JS Debugging JS Events JS Programming
JS Control Flow JS Scope JS Hoisting JS Strict Mode JS Code Blocks JS Style Guide JS Best Practices JS Mistakes JS Performance
JS References
JS Keywords Reference JS Keywords Reserved JS Operator Reference JS Operator Precedence
JS UTF-8 Characters
JS UTF-8 Letters JS UTF-8 Symbols JS UTF-8 Emojis
JS Versions
JS Versions JS 2025 JS 2024 JS 2023 JS 2022 JS 2021 JS 2020 JS 2019 JS 2018 JS 2017 JS 2016 JS 2015 (ES6) JS 2009 (ES5) JS IE / Edge JS History

JS Advanced

JS Functions
Function Definitions Function Arrows Function Parameters Function Invocation Function this Function Call Function Apply Function Bind Function Closures
JS Objects
Object Definitions Object Properties Object Methods Object Display Object Constructors Object this Object Destructuring Object Prototypes Object Iterations Object Management Object Get / Set Object Protection Object Reference
JS Classes
JS Classes JS Class Inheritance JS Class Static
JS Iterations
JS Loops JS Iterables JS Iterators JS Generators
JS Promises
JS Callbacks JS Asynchronous JS Promises JS Async/Await
JS Modules 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 Windows
JS Window JS Screen JS Location JS History JS Navigator JS Popup Alert JS Timing JS Cookies
JS Web API
Web API Intro Web Validation 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 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 Website JS Syllabus JS Study Plan JS Interview Prep JS Bootcamp JS Certificate
JS Objects


JavaScript Quiz Test

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You can test your JavaScript skills with W3Schools' Quiz.

The Test

The test contains 25 questions and there is no time limit.

The test is not official, it's just a nice way to see how much you know, or don't know, about JavaScript.

Count Your Score

You will get 1 point for each correct answer. At the end of the Quiz, your total score will be displayed. Maximum score is 25 points.

Start the Quiz

Good luck!

Start the JavaScript Quiz ❯

If you don't know JavaScript, we suggest that you read our JavaScript Tutorial from scratch.

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