JavaScript is the scripting language of the Web. JavaScript is used in millions of Web pages

to add functionality, validate forms, detect browsers, and much more. JavaScript is the

most popular scripting language on the Internet and works in all major browsers, such as

Internet Explorer, Firefox, Chrome, Opera, and Safari.

What Is Javascript?

* JavaScript was designed to add interactivity to HTML pages.

* JavaScript is a scripting language.

* A scripting language is a lightweight programming language.

* JavaScript is usually embedded directly into HTML pages.

* JavaScript is an interpreted language (means that scripts execute without preliminary compilation).

* Everyone can use JavaScript without purchasing a license.