Basic JavaScript

JS Tutorial JS Introduction JS Where To JS Output

JS Syntax JS Statements JS Comments

JS Variables JS Let JS Const JS Types

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 Loop for JS Loop while JS Break JS Continue

JS Strings JS String Templates JS String Methods JS String Search JS String Reference

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 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 Set Methods JS Set Logic JS Set WeakSet JS Set Reference

JS Maps JS Map Methods JS Map WeakMap JS Map Reference

JS Math JS Math Reference JS Random

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 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 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 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

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

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 Class Inheritance JS Class Static

JS Loops JS Iterables JS Iterators JS Generators

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

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

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

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

jQuery Selectors jQuery HTML jQuery CSS jQuery DOM

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

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

JavaScript Browser Objects Examples

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Examples of using JavaScript to access and manipulate the Browser objects.

Window Object

Open a new window when clicking on a button Open a new window and control its appearance Blur and Focus a new window Close the new window Checks whether the new window has been closed or not Write some text to the source (parent) window Move the new window relative to its current position Move the new window to the specified position Print the current page Resize a window by the specified pixels Resize a window to a specified size Scroll the content by the specified number of pixels Scroll the content to a specified position

Window explained

Screen Object

The visitor's screen: Width The visitor's screen: Height The visitor's screen: Available Width The visitor's screen: Available Height The visitor's screen: Color Depth The visitor's screen: Pixel Depth

Screen explained

Location Object

Return the hostname and port of the current URL Return the entire URL of the current page Return the path name of the current URL Return the protocol portion of the current URL Load a new document Replace the current document Break out of a frame

Location explained

History Object

Display the number of URLs in the history list Create a back button on a page Create a forward button on a page Load a specific URL from the history list

History explained

Navigator Object

Is cookies enabled in the visitor's browser? What is the name of the visitor's browser? What is the engine name of the visitor's browser? What is the version information of the visitor's browser? What is user agent information of the visitor's browser? What is the platform of the visitor's browser? What is the language of the visitor's browser? Is Java enabled in the visitor's browser?

Navigator explained

Popup Boxes

Display an alert box Demonstrate line breaks in an alert box Display a confirm box Display a prompt box

Popup explained

Timing

Simple timing Another simple timing Timing event in an infinite loop Timing event in an infinite loop - with a Stop button A clock created with a timing event Set and stop a timer with setInterval() and clearInterval()

Timing explained

Cookies

Create a welcome cookie

Cookies explained

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