What is JavaScript ?


JavaScript is a Open Source, Lightweight, Client-Side Scripting language. Client-side means the script runs on your web browser.

JavaScript is created for dynamic web applications (Interactive with client Ex: Login Form).

JavaScript and Java are completely different languages, both in concept and design.

JavaScript is very easy to implements and integrated By using HTML languge.


Where JavaScript use?

JavaScript is using for creating Interactive Web Application as following many wasys.

  • Client-side validations.
  • Dynamic drop-down menus.
  • Displaying date and time.
  • Text Change, Font Style Change.
  • Displaying pop-up windows and dialog boxes (like an alert dialog box, confirm dialog box and prompt dialog box).
  • Displaying clocks.

Why Javascript ?

JavaScript is Free of Cost And Open Source.

Easy to use on any application development. Examples are

  • Mobile Applications
  • Desktop Applications
  • Web Applications
  • Video Game Applications
  • Operating System Applications
  • Embedded Systems

You can use JavaScript in Back-end(Database) connection

Compaire to other Scripting Languages JavaScript is easy to learn and without requirement of any Tools in web applications.