EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 600+ Courses All in One Bundle
  • Login

Features of JavaScript

By Priya PedamkarPriya Pedamkar

Home » Software Development » Software Development Tutorials » JavaScript Tutorial » Features of JavaScript

features of javascript

Overview of Features of JavaScript

The following article provides a detailed outline of the features of JavaScript. Java Script was developed by Brendan Eich in Netscape in 1995 for coding in web pages allowing the logical operation to client edge. JavaScript is mainly a client edge script language. This object-centered script language most commonly used for designing web pages which are a standalone language developed in Netscape. It gives the user extra control over the browser with potential in the creation of new functions in scripts. This scripting language features case sensitive input with the detection of the user’s browser and operating system. JavaScript is mostly used by validation in client edge technology.

The following are more characteristics of JavaScript:

Start Your Free Software Development Course

Web development, programming languages, Software testing & others

  1. Object-Centered Script Language
  2. Client edge Technology
  3. Validation of User’s Input
  4. Else and If Statement
  5. Interpreter Centered
  6. Ability to perform In Built Function
  7. Case Sensitive format
  8. Light Weight and delicate
  9. Statements Looping
  10. Handling Events
  • The Statement Control Syntax System of Java Script is very similar to Statement Control Syntax used in C Language. Java Script allows more abilities to perform as HTML is only capable of designing websites and incapable of performing logic operations like condition checking, statements looping (while & for), statement decision making (else and if) at client edge and adding two numbers.
  • JavaScript is incapable of performing these functions which results in our need for JavaScript to execute these operations over the client edge. This scripting language can help to build more interactive websites, developing inbuilt clocks, light client edge programs, building windows popup with different dialog boxes like alerting dialog boxes, confirmation dialog boxes, and prompt dialog options.
  • Nowadays many web-based giants are using the technology of Java Script like Facebook, YouTube, Twitter, Gmail and Google Maps, etc. The Java Script features Enterprise level pop-down menus, Opening, and Closure of new window, manipulation of HTML Layers, Interface Enhancement of HTML, Adding animation essentials within the page, adding dynamic appearance in documents of HTML and Fixing of problems related to Browsers.
  • The Validation of data input within HTML Form data which is being sent to the server can be done using JavaScript. Users can also perform manipulation of data for layers of HTML like moving capability, hiding, change is the interface of HTML codes and writing them separately are some great features of Java Script.

JavaScript Features

Now let us see the features of JavaScript in detail:

1. Object-Centered Script Language

Object Centered Language features built in the object as Java Script has a window object. Some Common Examples of Object Centered languages are Java Script and Visual Basic etc. The object-centered languages are mostly used for features like Polymorphism which is a quality of taking an object in many forms. Use of Polymorphism within object-oriented programming requires whenever we use to represent reference of the parent class to an object of a child class.

2. Client Edge Technology

The client is basically a term used for Web Browser in respective of User. The data on the server gets uploaded by a client which later used by a user in the rendered form. The user gets access to the client through a web browser for surfing and interacting through websites. The client edge technology in Java Script allows the client to have full control over the content which is being updated in servers.

3. Validation of User’s Input

Validation of User’s Input is most commonly known as form validation, it allows users to interact with client through filling forms through web pages. The details in the form need to be correctly filled where form validation helps the client to validate the details entered by the user.

4. Else and IF Statement

IF and Else Statements are used to perform logical operations.

Popular Course in this category
JavaScript Training Program (39 Courses, 23 Projects, 4 Quizzes)39 Online Courses | 23 Hands-on Projects | 225+ Hours | Verifiable Certificate of Completion | Lifetime Access | 4 Quizzes with Solutions
4.5 (6,139 ratings)
Course Price

View Course

Related Courses
Angular JS Training Program (9 Courses, 7 Projects)Vue JS Training (1 Courses, 3 Project)

5. Interpreter Centered

Java Script is built with Interpreter Centered which allows the user to get the output without the use of Compiler. That means the input performed by the user gets rendered directly without the compiling of codes.

6. Ability to Perform In Build Function

Java Script has many In-Built Functions like isNAN (), Number (), parseFloat () and parseInt () etc. isNAN () Function is used to identify that input object is correct number format. parseFloat () function is used in the conversion of the object into a number. parseInt () Function is used to analyze strings.

7. Case Sensitive Format

The codes written in Java Script are Case Sensitive which explains that there will be no difference in the output whether the codes are written in Upper Case or Lower Case Format.

8. Light Weight and delicate

Java Script Features Light Weight and delicate and codes written in JavaScript don’t include variables and uses only objects to perform the operations. 

9. Statements Looping

The statement looping is used to perform the same operations repeatedly. In this operation the same set of code run in repeat manner for a specific or unspecific set of time.

10. Handling Events

The Java Script has the ability to control operations updated on servers. This is basically controlling the response on the website when the user tries to perform any operation the server handled by the client like clicking on links and options, interaction response over the website, etc.

Java Script Comments

These are helpful in understanding the purpose of code, Comments will not be displayed in the output rendered by JavaScript.

There are two types of Java Script Comments:

  • Comments are written under Single Line
  • Comments are written under Multi-Line

Comments Written under Single Line

These Comments can be identified using double forward Slashes.

Example of Comments written under Single Line is:

<script>
//  This is how we write comments is single line
document.write ( “HTML and JavaScript” );
<script/>

Result

HTML and JavaScript

Comments Written under Multi-Line

These Comments can be identified with a structure that starts with forwarding slash and asterisk and ends with an asterisk and forward slash.

Example of Comments written under Multi-Line:

<script>
/* This is how we write comments in Multi-Line /*
Document.write ( “Features of JavaScript” );
<script/>

Result:

Features of Java Script

Limitations of Java Script 

  • Reading and Writing Capability on client edge is not available in Java Script.
  • Performing Functioning with Network Programs is not available in Java Script.

Recommended Articles

This has been a guide to Features of JavaScript. Here we discuss the different features and limitations of JavaScript along with the example of comments written under multi-line. You can also go through our other suggested articles to learn more –

  1. Constructor in JavaScript
  2. Arrays in JavaScript
  3. JavaScript Tools
  4. What Javascript Can Do?

JavaScript Training Program (39 Courses, 23 Projects)

39 Online Courses

23 Hands-on Projects

225+ Hours

Verifiable Certificate of Completion

Lifetime Access

4 Quizzes with Solutions

Learn More

0 Shares
Share
Tweet
Share
Primary Sidebar
JavaScript Tutorial
  • Basic
    • Introduction To JavaScript
    • What is JavaScript
    • What Javascript Can Do
    • Uses of JavaScript
    • How JavaScript Works
    • Is Javascript Case Sensitive
    • Is Javascript Object Oriented
    • Features of JavaScript
    • Careers in JavaScript
    • How to Install JavaScript
    • Best Javascript Frameworks
    • JavaScript MVC Frameworks
    • JavaScript Tools
    • What is JSON
    • What is Redux
    • What is ES6
    • Uses of React JS
    • How Analytics.JS Works
    • JavaScript Compilers
    • Java and JavaScript
    • JavaScript Literals
    • Variables in JavaScript
    • JavaScript Global Variable
    • JavaScript Keywords
    • String in JavaScript
    • Pointers in JavaScript
    • Primitive Data Types in JavaScript
    • JavaScript console log
    • Object in JavaScript
    • JavaScript Enum
    • Arithmetic in JavaScript
    • Assignment Operator in JavaScript
    • JavaScript Modules
    • Cheat Sheet JavaScript
    • NPM Alternatives
  • Objects
    • JavaScript Objects
    • JavaScript History Object
    • JavaScript Object Notation
    • JavaScript Map Object
    • JavaScript Date Object
    • JavaScript Window Object
    • JavaScript Object Constructors
    • JavaScript Clone Object
    • JavaScript Object.assign()
    • JavaScript object.is()
    • JavaScript Object to JSON
  • Operators
    • Arithmetic Operators in JavaScript
    • JavaScript Assignment Operators
    • Logical Operators in JavaScript
    • Comparison Operators in JavaScript
    • Bitwise Operators in JavaScript
    • Ternary Operator JavaScript
    • Boolean Operators in JavaScript
    • JavaScript?Modulo
    • JavaScript Boolean()
    • Unary Operators in JavaScript
    • JavaScript Number
    • JavaScript Floating
    • JS Operator Precedence
  • Control statements
    • Control Statement in JavaScript
    • Conditional Statements in JavaScript
    • Break Statement in JavaScript
    • Continue in JavaScript
    • Switch Statement in JavaScript
    • Case Statement in JavaScript
    • JavaScript if Statement
    • Nested if in JavaScript
    • JavaScript elseIf
  • Loops
    • For Loop in JavaScript
    • While Loop in JavaScript
    • Do While Loop in JavaScript
    • Nested Loop in JavaScript
  • Array
    • Arrays in JavaScript
    • 2D Arrays in JavaScript
    • Multi-Dimensional Array in JavaScript
    • Associative Array in JavaScript
    • JavaScript Declare Array
    • Arrays Methods in JavaScript
    • JavaScript Loop Array
    • String Array in JavaScript
    • JavaScript Get Array Length
    • JavaScript Merge Arrays
    • JavaScript Array Sort
    • JavaScript Array Push
    • JavaScript Iterate Array
    • JavaScript Empty Array
    • JavaScript Array Concat
    • Dynamic Array in JavaScript
    • JavaScript subarray()
    • JavaScript Array Filter
    • JavaScript Nested Array
    • JavaScript Flatten Array
    • JavaScript Array map()
    • JavaScript Array includes()
    • JavaScript Array Contain
    • JavaScript Array Slice
    • JavaScript Copy Array
    • Javascript Sum Array
    • JavaScript reverse Array
    • JSON Parse Array
  • Sorting
    • Sorting Algorithms in JavaScript
    • Insertion Sort in JavaScript
    • Merge Sort in JavaScript
    • Quick Sort in JavaScript
    • Bubble Sort in JavaScript
    • pop() in JavaScript
    • push() in JavaScript
    • Sort string in JavaScript
  • Functions
    • JavaScript String Functions
    • JavaScript String Length
    • JavaScript split String
    • JavaScript Math Functions
    • Recursive Function in JavaScript
    • Regular Expressions in JavaScript
    • JavaScript Arrow Function
    • JavaScript Date Function
    • Match Function in Javascript
    • Replace Function in JavaScript
    • JavaScript Call Function
    • JavaScript Pass By Value
    • split() Function in JavaScript
    • reduce() Function JavaScript
    • JavaScript String replace
    • JavaScript Compare Strings
    • JavaScript Sleep
    • JavaScript toLowercase()
    • JavaScript String to Float
    • JavaScript String to Number
    • JavaScript String to int
    • JavaScript Object to String
    • JavaScript Convert to JSON
    • JavaScript Append
    • Javascript Array to String
    • Javascript Nested Functions
    • Set in JavaScript
    • Vectors in JavaScript
    • Javascript Anonymous Function
    • sign() in JavaScript
    • isNaN() JavaScript
    • Slice() Method in JavaScript
    • Javascript void
    • endsWith() in JavaScript
    • trim() Function in JavaScript
    • JavaScript typeof
    • JavaScript indexOf()
    • JavaScript encodeURI()
    • JavaScript Random
    • Ceil() in JavaScript
    • JavaScript tofixed
    • JavaScript hash()
    • JavaScript MD5
    • JavaScript search
    • JavaScript z-index
    • JavaScript Absolute Value
    • JavaScript Closure
    • Javascript Prototype
    • JavaScript Date parse
    • JavaScript DatePicker
    • JavaScript Parse String
    • JavaScript undefined
    • JavaScript FileReader
    • JavaScript Style visibility
    • JavaScript sleep Function
    • JavaScript forEach()
    • JavaScript keys()
    • JavaScript keycodes
    • JavaScript find() 
    • JavaScript values()
    • JavaScript Counter
    • JavaScript Countdown
    • JavaScript instanceof
    • JavaScript Delay
    • JavaScript Default Value
    • JavaScript concat String
    • JavaScript Document Object Model
    • Unshift JavaScript
    • JavaScript Callback Function
    • JavaScript hasOwnProperty()
    • JavaScript UUID
    • JSON Parser
    • JSON Array of Strings
    • Sublime Pretty JSON
    • JavaScript JSON to string
    • JavaScript Uppercase
    • JavaScript Namespace
    • JavaScript Range
    • JavaScript JSON
    • JavaScript exec()
    • JavaScript test()
    • JavaScript Self Invoking Functions
    • JSON Stringify Pretty
    • JavaScript findIndex()
    • JavaScript entries()
    • JavaScript join()
    • JavaScript lastIndexOf()
    • JavaScript every()
    • JavaScript getElementById()
    • JavaScript getElementsByName()
    • JavaScript getElementsByTagName()
    • JavaScript getElementsByClassName()
    • JavaScript Animation
    • JavaScript Minify
  • Events
    • JavaScript Events
    • JavaScript Event Handler
    • JavaScript Keyboard Events
    • JavaScript Mouse Events
    • JavaScript mousemove
    • JavaScript mousedown
    • JavaScript onchange
    • JavaScript onmouseout
    • JavaScript Onkeydown
    • JavaScript onsubmit
    • JavaScript Form Events
    • JavaScript Window Events
    • JavaScript Custom Events
    • JavaScript Alert
    • JavaScript Confirm
    • JavaScript onclick Alert
    • JavaScript Apply
    • JavaScript onblur
    • JavaScript onkeyup
    • JavaScript onfocus
  • Advanced
    • Constructor in JavaScript
    • Inheritance in JavaScript
    • Polymorphism in JavaScript
    • JavaScript Static Method
    • Navigator in JavaScript
    • Abstract Classes in JavaScript
    • keyword in JavaScript
    • Overriding in JavaScript
    • JavaScript Clear Console
    • JavaScript References
    • JavaScript list
    • JavaScript Grid
    • JavaScript innerText
    • Cookies in JavaScript
    • Delete Cookie in JS
    • Encapsulation in JavaScript
    • JavaScript Parent Node
    • JavaScript Parent
    • Javascript Remove Element
    • Errors in JavaScript
    • Forms in JavaScript
    • JavaScript Validator
    • JavaScript Form Validation
    • Email Validation in JavaScript
    • Hamburger Menu JavaScript
    • JavaScript Date Formats
    • JavaScript Number Format
    • JavaScript Debugger
    • JavaScript Stack
    • Queue in JavaScript
    • parseFloat in JavaScript
    • Javascript innerHTML
    • JavaScript setInterval
    • JavaScript Popup Box
    • JavaScript Message Box
    • Lightbox in JavaScript
    • Javascript Design Patterns
    • addEventListener JavaScript
    • Timer in JavaScript
    • JavaScript setTimeout
    • JavaScript clearTimeout()
    • JavaScript String Format
    • JavaScript Scroll to Top
    • JavaScript Function Declaration
    • JavaScript Function Arguments
    • Javascript Strict Mode
    • File Handling in JavaScript
    • JavaScript parseInt
    • JavaScript prompt
    • JavaScript Set Class
    • JavaScript Try Catch
    • Javascript Throw Exception
    • Finally in JavaScript
    • JavaScript Get Element by Class
    • JavaScript Obfuscator
    • Disable JavaScript
    • SetAttribute JavaScript
    • JavaScript Cursor
    • LinkedList in JavaScript
    • JavaScript WeakMap
    • JavaScript DOM
    • JavaScript defer
    • JavaScript Promise
    • Pagination in JavaScript
    • JavaScript Refresh Page
    • JSON.stringify JavaScript
    • JavaScript IIFE
    • JavaScript Fetch API
    • JavaScript Auto Complete
    • JavaScript Copy to Clipboard
    • JavaScript querySelector
    • JavaScript Graph
  • Programs
    • Patterns in JavaScript
    • Reverse in JavaScript
    • Palindrome in JavaScript
    • Factorial Program in JavaScript
    • Fibonacci Series In JavaScript
    • Square Root in JavaScript
    • Prime Number in JavaScript
    • Armstrong Number in JavaScript
    • Random Number Generator in JavaScript
    • Reverse String in JavaScript
    • JavaScript Random String
    • Functional Programming in JavaScript
  • Interview Questions
    • Javascript Interview Questions
    • JSON Interview Questions
    • JS Interview Questions

Related Courses

JavaScript Certification Training

Angular JS Certification Training

Vue JS Training

Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Java Tutorials
  • Python Tutorials
  • All Tutorials
Certification Courses
  • All Courses
  • Software Development Course - All in One Bundle
  • Become a Python Developer
  • Java Course
  • Become a Selenium Automation Tester
  • Become an IoT Developer
  • ASP.NET Course
  • VB.NET Course
  • PHP Course

© 2020 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA Login

Forgot Password?

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you
Book Your One Instructor : One Learner Free Class

Let’s Get Started

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you
EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

Special Offer - JavaScript Training Program (39 Courses, 23 Projects) Learn More