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All popular web browsers support JavaScript as they provide built-in execution environments.
JavaScript follows the syntax and structure of the C programming language. Thus, it is a structured programming language.
JavaScript is a weakly typed language, where certain types are implicitly cast (depending on the operation).
JavaScript is an object-oriented programming language that uses prototypes rather than using classes for inheritance.
It is a light-weighted and interpreted language.
It is a case-sensitive language.
JavaScript is supportable in several operating systems including, Windows, macOS, etc.
It provides good control to the users over the web browsers.
Client-side validation,
Dynamic drop-down menus,
Displaying date and time,
Displaying pop-up windows and dialog boxes (like an alert dialog box, confirm dialog box and prompt dialog box),
Displaying clocks etc.
JavaScript Introduction
JavaScript Example
External JavaScript
JavaScript Comment
JavaScript Variable
JavaScript Global Variable
JavaScript Data Types
JavaScript Operators
JavaScript If Statement
JavaScript Switch
JavaScript Loop
JavaScript Function
JavaScript Object
JavaScript Array
JavaScript String
JavaScript Date
JavaScript Math
JavaScript Number
JavaScript Boolean
JavaScript DataView
JavaScript Function
JavaScript handler
JavaScript JSON
JavaScript Number
JavaScript Reflect
JavaScript RegExp
JavaScript Symbol
Browser Objects
1) Window Object
2) History Object
3) Navigator Object
4) Screen Object
5) Document Object
getElementById
getElementsByName
getElementsByTagName
JavaScript innerHTML property
JavaScript innerText property
JavaScript form validation
JavaScript email validation
JavaScript Class
JavaScript Object
JavaScript Prototype
JavaScript constructor Method
JavaScript static Method
JavaScript Encapsulation
JavaScript Inheritance
JavaScript Polymorphism
JavaScript Abstraction
JavaScript Cookies
Cookie Attributes
Cookie with multiple Name
Deleting Cookies
JavaScript this Keyword
JavaScript Debugging
JavaScript Hoisting
JavaScript Strict Mode
JavaScript TypedArray
JavaScript Set
JavaScript Map
JavaScript WeakSet
JavaScript WeakMap
JavaScript Interview Questions
JavaScript Array
Array concat() method
Array copywithin() method
Array every() method
Array fill() method
Array filter() method
Array find() method
Array findIndex() method
Array forEach() method
Array includes() method
Array indexOf() method
Array join() method
Array lastIndexOf() method
Array map() method
Array pop() method
Array push() method
Array reverse() method
Array shift() method
Array slice() method
Array sort() method
Array splice() method
Array unshift() method
JavaScript DataView
DataView getFloat32() method
DataView getFloat64() method
DataView getInt8() method
DataView getInt16() method
DataView getInt32() method
DataView getUint8() method
DataView getUint16() method
DataView getUint32() method
JavaScript Function
Function apply() method
Function bind() method
Function call() method
Function toString() method
JavaScript Date
date getDate() method
date getDay() method
date getFullYears() method
date getHours() method
date getMilliseconds() method
date getMinutes() method
date getMonth() method
date getSeconds() method
date getUTCDate() method
date getUTCDay() method
date getUTCFullYears() method
date getUTCHours() method
date getUTCMinutes() method
date getUTCMonth() method
date getUTCSeconds() method
date setDate() method
date setDay() method
date setFullYears() method
date setHours() method
date setMilliseconds() method
date setMinutes() method
date setMonth() method
date setSeconds() method
date setUTCDate() method
date setUTCDay() method
date setUTCFullYears() method
date setUTCHours() method
date setUTCMilliseconds() method
date setUTCMinutes() method
date setUTCMonth() method
date setUTCSeconds() method
date toDateString() method
date toISOString() method
date toJSON() method
date toString() method
date toTimeString() method
date toUTCString() method
date valueOf() method
JavaScript handler
handler apply() method
handler construct() method
handler defineProperty() method
handler deleteProperty() method
handler get() method
handler getOwnPropertyDescriptor() method
handler getPrototypeOf() method
handler has() method
handler isExtensible() method
handler ownKeys() method
handler preventExtensions() method
handler set() method
handler setPrototypeOf() method
JavaScript JSON
JSON.parse() method
JSON.stringify() method
JavaScript Map
Map clear() method
Map delete() method
Map entries() method
Map forEach() method
Map get() method
Map has() method
Map keys() method
Map set() method
Map values() method
JavaScript Math
Math abs() method
Math acos() method
Math asin() method
Math atan() method
Math cbrt() method
Math ceil() method
Math cos() method
Math cosh() method
Math exp() method
Math floor() method
Math hypot() method
Math log() method
Math max() method
Math min() method
Math pow() method
Math random() method
Math round() method
Math sign() method
Math sin() method
Math sinh() method
Math sqrt() method
Math tan() method
Math tanh() method
Math trunc() method
JavaScript Number
Number isFinite() method
Number isInteger() method
Number parseFloat() method
Number parseInt() method
Number toExponential() method
Number toFixed() method
Number toPrecision() method
Number toString() method
JavaScript RegExp
RegExp.exec() method
RegExp.test() method
RegExp.toString() method
JavaScript Object
Object.assign() method
Object.create() method
Object.defineProperty() method
Object.defineProperties() method
Object.entries() method
Object.freeze() method
getOwnPropertyDescriptor() method
getOwnPropertyDescriptors() method
getOwnPropertyNames() method
getOwnPropertySymbols() method
Object.getPrototypeOf() method
Object.is() method
preventExtensions() method
Object.seal() method
Object.setPrototypeOf() method
Object.values() method
JavaScript Reflect
Reflect.apply() method
Reflect.construct() method
Reflect.defineProperty() method
Reflect.deleteProperty() method
Reflect.get() method
getOwnPropertyDescriptor() method
Reflect.getPrototypeOf() method
Reflect.has() method
Reflect.isExtensible() method
Reflect.ownKeys() method
preventExtensions() method
Reflect.set() method
Reflect.setPrototypeOf() method
JavaScript Set
Set add() method
Set clear() method
Set delete() method
Set entries() method
Set forEach() method
Set has() method
Set values() method
String charAt() method
String charAt() method
String charCodeAt() method
String concat() method
String indexOf() method
String lastIndexOf() method
String search() method
String match()
String replace() method
String substr() method
String substring() method
String slice() method
String toLowerCase() method
toLocaleLowerCase() method
String toUpperCase() method
toLocaleUpperCase() method
String toString() method
String valueOf() method
JavaScript Symbol
Symbol.for() method
Symbol.keyFor() method
Symbol.toString() method
Symbol.hasInstance Property
isConcatSpreadable Property
Symbol.match Property
Symbol.prototype Property
Symbol.replace Property
Symbol.search Property
Symbol.split Property
Symbol.toStringTag Property
Symbol.unscopables Property
JavaScript TypedArray
TypedArray copyWithin() method
TypedArray entries() method
TypedArray every() method
TypedArray fill() method
TypedArray filter() method
TypedArray find() method
TypedArray findIndex() method
TypedArray forEach() method
TypedArray includes() method
TypedArray indexof() method
TypedArray join() method
TypedArray Keys() method
TypedArray lastIndexof() method
TypedArray map() method
TypedArray reduce() method
TypedArray reduceRight() method
TypedArray reverse() method
TypedArray set() method
TypedArray Slice() method
TypedArray some() method
TypedArray sort() method
TypedArray subarray() method
TypedArray values() method
toLocaleString() method
TypedArray toString() method
JavaScript WeakMap
WeakMap delete() method
WeakMap get() method
WeakMap has() method
WeakMap set() method
JavaScript WeakSet
WeakSet add() method
WeakSet delete() method
WeakSet has() method
JavaScript Advance
JS TypedArray JS Set JS Map JS WeakSet JS WeakMap JavaScript callback JavaScript closures JavaScript date difference JavaScript date format JS date parse() method JavaScript defer JavaScript redirect JavaScript scope JavaScript scroll JavaScript sleep JavaScript void JavaScript FormDifferences
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JavaScript function to check array is empty or not JavaScript multi-line String JavaScript Anonymous Functions Implementing JavaScript Stack Using Array JavaScript classList JavaScript Code Editors JavaScript let keyword Random String Generator using JavaScript JavaScript Queue Event Bubbling and Capturing in JavaScript How to select all checkboxes using JavaScript JavaScript change Event JavaScript focusout event Traverse array object using JavaScript JavaScript create and download CSV file How to make beep sound in JavaScript How to add a WhatsApp share button in a website using JavaScript JavaScript Execution Context JavaScript querySelector Shallow Copy in JavaScript How to Toggle Password Visibility in JavaScript Removing Duplicate From Arrays JavaScript insertBefore JavaScript Select Option Get and Set Scroll Position of an Element Getting Child Elements of a Node in JavaScript JavaScript scrollIntoView JavaScript String startsWith JS First Class Function JavaScript Default Parameters JavaScript Recursion in Real Life JavaScript removeChild Remove options from select list in JavaScript JavaScript Calculator Palindrome in JavaScript JavaScript Call Stack Fibonacci series in JavaScript JavaScript appendchild() method Ripple effect JavaScript Convert object to array in Javascript JavaScript Async/Await JavaScript Blob Check if the array is empty or null, or undefined in JavaScript JavaScript Animation JavaScript Design Patterns CanvasJS JavaScript format numbers with commas Currying in JavaScript JavaScript hasOwnProperty How to make a curved active tab in the navigation menu using HTML CSS and JavaScript Http Cookies JavaScript Comparison JavaScript Confirm JavaScript Garbage JavaScript Special Characters JavaScript Time Now Lodash_.chain() Method Underscore.js _.filter Function JavaScript Factory Function JavaScript for...in Loop Window Location in JavaScript JavaScript Certification Free JavaScript MutationObserver function Npm uninstall command Npm Update Library and Npm List Backend Project Ideas How to become a Front-End Developer Create a JavaScript Countdown Timer Detect or Check Caps Lock Key is ON or OFF using JavaScript How to Iterate through a JavaScript Object JavaScript Fetch API Javascript history.pushState() Method JavaScript Infinity PROPERTY JavaScript insertAdjacentHTML() method How to use Console in JavaScript Insert data into javascript indexedDB JavaScript Exponentiation Operator JavaScript indexedDB Javascript offsetX property Javascript offsetY property JavaScript onunload Event JAVASCRIPT TRIGGER CLICK npm Install Command How to check empty objects in JavaScript How to Check the Specific Element in the JavaScript Class JavaScript NaN Function JavaScript onbeforeunload Event Read Data from JavaScript IndexedDB Delete data from javascript indexedDB NextSibling Property in Javascript PreviousSibling Property in Javascript JavaScript sessionStorage previousElementSibling Property in javascript Base64 Decoding In JavaScript How to get domain name from URL in JavaScript Difference between preventDefault() and stopPropagation() methods JavaScript padStart() Method Javascript promise chaining How to check two array values are equal in JavaScript How to remove a Key/Property from an object in JavaScript JavaScript Endswith() Function How to draw a line using javascript JavaScript windows getComputedStyle() Method Difference between indexof and search in JavaScript How to capitalize the first letter of string in JavaScript How to sort characters in a string in JavaScript How to pick random elements from an Array How to Remove an Event Handler Using JavaScript Method Javascript translate() method GIF Player using CSS and JS Javascript Async Generator function Javascript "for...of" loop JavaScript globalThis Object JavaScript Logical Assignment Operators JavaScript numerical separator JavaScript prepend() method Javascript regexp Lookahead Javascript regexp Lookbehind How to remove classes in 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JavaScript I/QLearn JavaScript Tutorial
Our JavaScript Tutorial is designed for beginners and professionals both. JavaScript is used to create client-side dynamic pages.
JavaScript is an object-based scripting language which is lightweight and cross-platform.
JavaScript is not a compiled language, but it is a translated language. The JavaScript Translator (embedded in the browser) is responsible for translating the JavaScript code for the web browser.
What is JavaScript
JavaScript (js) is a light-weight object-oriented programming language which is used by several websites for scripting the webpages. It is an interpreted, full-fledged programming language that enables dynamic interactivity on websites when applied to an HTML document. It was introduced in the year 1995 for adding programs to the webpages in the Netscape Navigator browser. Since then, it has been adopted by all other graphical web browsers. With JavaScript, users can build modern web applications to interact directly without reloading the page every time. The traditional website uses js to provide several forms of interactivity and simplicity.
Although, JavaScript has no connectivity with Java programming language. The name was suggested and provided in the times when Java was gaining popularity in the market. In addition to web browsers, databases such as CouchDB and MongoDB uses JavaScript as their scripting and query language.
Features of JavaScript
There are following features of JavaScript:
History of JavaScript
In 1993, Mosaic , the first popular web browser, came into existence. In the year 1994 , Netscape was founded by Marc Andreessen . He realized that the web needed to become more dynamic. Thus, a 'glue language' was believed to be provided to HTML to make web designing easy for designers and part-time programmers. Consequently, in 1995, the company recruited Brendan Eich intending to implement and embed Scheme programming language to the browser. But, before Brendan could start, the company merged with Sun Microsystems for adding Java into its Navigator so that it could compete with Microsoft over the web technologies and platforms. Now, two languages were there: Java and the scripting language. Further, Netscape decided to give a similar name to the scripting language as Java's. It led to 'Javascript'. Finally, in May 1995, Marc Andreessen coined the first code of Javascript named ' Mocha '. Later, the marketing team replaced the name with ' LiveScript '. But, due to trademark reasons and certain other reasons, in December 1995, the language was finally renamed to 'JavaScript'. From then, JavaScript came into existence.
Application of JavaScript
JavaScript is used to create interactive websites. It is mainly used for:
JavaScript Example
<script> document.write("Hello JavaScript by JavaScript"); </script> Test it NowA detailed explanation of first JavaScript example is given in next chapter.
JavaScript Index
JavaScript Tutorial
JavaScript Basics
JavaScript Objects
JavaScript BOM
JavaScript DOM
JavaScript Validation
JavaScript OOPs
JavaScript Cookies
JavaScript Events
HTML/DOM EventsJavaScript Misc
JavaScript Advance
Interview Questions
JavaScript Methods
JavaScript Array Object
JavaScript DataView Object
JavaScript Function Object
JavaScript Date Object
JavaScript handler Object
JavaScript JSON Object
JavaScript Map Object
JavaScript Math Object
JavaScript Number Object
JavaScript RegExp Object
JavaScript Object
JavaScript Reflect Object
JavaScript Set Object
JavaScript String Object
JavaScript Symbol Object
Symbol Property
JavaScript TypedArray Object
JavaScript WeakMap Object
JavaScript WeakSet Object
Prerequisite
Before learning JavaScript in depth, you must have the basic knowledge of HTML.
Audience
We have developed this JavaScript tutorial for beginners and professionals both. There are given a lot of examples with JavaScript editor. So, you can easily edit your JavaScript code which will help you to learn JavaScript easily.
Problem
We assure you that you will not find any problem in our JavaScript tutorial. But, if you find any mistake, you can post it in our comment section.
Next Topic JavaScript Example
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