What is JavaScript And Features of JavaScript

What is JavaScript?

JavaScript may be a text-based artificial language used each on the client-side and server-side that permits you to create web content interactive. Whereas markup language and CSS are languages that offer structure and elegance to web content, JavaScript provides web content interactive components that interact with a user. Common samples of JavaScript that you simply may use daily embody the search box on Amazon, a news recap video embedded on The big apple Times, or refreshing your Twitter feed.

Incorporating JavaScript improves the user expertise of the net page by changing it from a static page into an associated interactive one. To recap, JavaScript adds behavior to web content.

Features of JavaScript

The following article provides an in depth outline of the features of JavaScript. JavaScript was developed by Brendan Eich in Netscape in 1995 for coding in sites allowing the logic operation to client edge. JavaScript is especially a client edge script language. This object-centered script language most ordinarily used for designing sites which are a standalone language developed in Netscape. It gives the user extra control over the browser with potential within the creation of latest functions in scripts. This scripting language features case sensitive input with the detection of the user’s browser and OS . JavaScript is usually employed by validation in client edge technology.

The following are more characteristics of JS

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 JavaScript is extremely almost like Statement Control Syntax utilized in C Language. JavaScript allows more abilities to perform as HTML is merely capable of designing websites and incapable of performing logic operations like condition checking, statements looping (while & for), statement deciding (else and if) at client edge and adding two numbers.
JavaScript is incapable of performing these functions which ends up in our need for JavaScript to execute these operations over the client edge. This scripting language can help to create 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 JavaScript like Facebook, YouTube, Twitter, Gmail and Google Maps, etc. Interface Enhancement of HTML, Adding animation essentials within the page, adding dynamic appearance in documents of HTML and Fixing of problems associated with Browsers.
The Validation of knowledge input within HTML Form data which is being sent to the server are often done using JavaScript. Users also can perform manipulation of knowledge for layers of HTML like moving capability, hiding, change is that the interface of HTML codes and writing them separately are some great features of JavaScript.

Now allow us to see the features of JavaScript in detail:

Object-Centered Script Language

Object Centered Language features inbuilt the thing as JavaScript features a window object. Some Common samples of Object Centered languages are JavaScript and Visual Basic etc. The object-centered languages are mostly used for features like Polymorphism which may be 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 toddler class.

Client Edge Technology

The client is essentially a term used for browser in respective of User. the info on the server gets uploaded by a client which later employed by a user within the rendered form. The user gets access to the client through an internet browser for surfing and interacting through websites. The client edge technology in JavaScript allows the client to possess full control over the content which is being updated in servers.

Validation of User’s Input

Validation of User’s Input is most ordinarily referred to as form validation, it allows users to interact with client through filling forms through sites . the small print within the form got to be correctly filled where form validation helps the client to validate the small print entered by the user.

Else and IF Statement

IF and Else Statements are wont to perform logical operations.

Interpreter Centered

JavaScript is made with Interpreter Centered which allows the utilization r to urge the output without the use of Compiler. meaning the input performed by the user gets rendered directly without the compiling of codes.

Ability to Perform In Build Function

JavaScript has many In-Built Functions like isNAN(), Number(), parseFloat() and parseInt() etc. isNAN() Function is employed to spot that input object is correct number format. parseFloat() function is employed within the conversion of the thing into variety . parseInt() Function is employed to research strings.

Case Sensitive Format

The codes written in JavaScript are Case Sensitive which explains that there’ll be no difference within the output whether the codes are written in capital or small letter Format.

Light Weight and delicate

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

Statements Looping

The statement looping is employed to perform an equivalent operations repeatedly. during this operation an equivalent set of code run in repeat manner for a selected or unspecific set of your time .

Handling Events

The JavaScript has the power to regulate operations updated on servers. this is often basically controlling the response on the web site when the user tries to perform any operation the server handled by the client like clicking on links and options, interaction response over the web site , etc.

Java Script Comments

These are useful in understanding the motivation behind code, Comments won’t be shown in the yield rendered by JavaScript.

There are two kinds of Java Script Comments:

1. Remarks are composed under Single Line

2. Remarks are composed under Multi-Line


Remarks Written under Single Line

These Comments can be distinguished utilizing twofold forward Slashes.

Case of Comments composed under Single Line is:


/  This is the means by which we compose remarks is single line

document.write (“CSS and JS”);



CSS and JS


Remarks Written under Multi-Line

These Comments can be related to a structure that begins with sending cut and reference mark and finishes with a bullet and forward cut.

Case of Comments composed under Multi-Line:


/* This is the way we compose remarks in Multi-Line/*

Document.write (“this is passage content”);



this is section content


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