JavaScript:

• It is designed to add huge amount of information or new technologies to HTML pages.

• It is a new scripting language developed by netscape (a scripting language is a lightweight programming language). Scripting languages are sometimes called little languages.

• It is usually embedded into an HTML program because it uses filename.html and the HTTP protocol to transport itself from the web server to client’s browser where the javascript executes and processes client information.

• It is an interpreted language, which requires no compilation steps.This provides an easy development process. The syntax is completely interpreted by the browser just as it interprets HTML tags.

Applications of Javascript:

• It gives HTML designers a programming tool. It is used to modify web pages.

• It is platform independent.

• It is designed for programming user events.

• It can read and write HTML elements.

• It can be used to validate input data.

• It can be used to detect the visitor's browser.

• It is designed for small and simple programs.