Introduction To JavaScript

2 min readDec 4, 2022

JavaScript is a programming language that was invented by Brendan Eich in 1995 which later became ECMA standard in 1997.

The official standard name is ECMA-262 and the official name of the language is ECMAScript.

JavaScript is widely and commonly used by various developers world wide and it’s features spreads widely across different technologies.

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JavaScript is mainly a client edge script language.

Some Core Features Of JavaScript

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.

Client edge Technology;

The client is basically a term used for Web Browser in respective of User.

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.

Else and If Statement;

IF and Else Statements are used to perform logical operations.

Interpreter Centered;

Java Script is built with Interpreter Centered which allows the user to get the output without the use of Compiler.

Ability to perform In Built Function;

Java Script has many In-Built Functions like isNAN (), Number (), parseFloat () and parseInt () etc.

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.

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.

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.

Handling Events;

The Java Script has the ability to control operations updated on servers.

Other Features/Advantages Of JavaScript

Speed;

Since JavaScript is an ‘interpreted’ language, it reduces the time required by other programming languages like Java for compilation.

Simplicity;

JavaScript is easy to understand and learn. The structure is simple for the users as well as the developers.

Popularity;

Since all modern browsers support JavaScript, it is seen almost everywhere.

Interoperability ;

JavaScript works perfect with other programming languages and therefore numerous developers prefer it in developing many applications.

Server Load;

As JavaScript operates on the client-side, data validation is possible on the browser itself rather than sending it off to the server.

Rich Interfaces;

JavaScript provides various interfaces to developers for creating catchy webpages.

Extended Functionality;

Third-party add-ons like Greasemonkey (a Mozilla Firefox extension) allow the developers to add snippets of predefined code in their code to save time and money.