JavaScript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-side script to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.

JavaScript was first known as LiveScript, but Netscape changed its name to JavaScript, possibly because of the excitement being generated by Java. JavaScript made its first appearance in Netscape 2.0 in 1995 with the name LiveScript. The general-purpose core of the language has been embedded in Netscape, Internet Explorer, and other web browsers.



  • Popularity. JavaScript is used everywhere on the web.
  • Server Load. Being client-side reduces the demand on the website server.
  • Gives the ability to create rich interfaces.

Features Of JavaScript

  •  Validating User’s Input
  • Simple Client-side Calculations
  • Greater Control
  • .Platform Independent
  • Handling Dates and Time
  • Generating HTML Content
  • Default Parameters

Dynamic website enhancements

  • Autocomplete
  • Loading new content or data onto the page without reloading the page
  • Rollover effects and dropdown menus
  • Animating page elements such as fading, resizing or relocating
  • Playing audio and video
  • Validating input from Web forms
  • Repairing browser compatibility issues