Javascript is a dynamic computer programming language. It is lightweight and most commonly used as a part of web pages, whose implementations allow client-sidescript to interact with the user and make dynamic pages. It is an interpreted programming language with object-oriented capabilities.
JavaScript is a dynamic functional object-oriented programming language that can be used for
Enriching a web page by
generating browser-specific HTML content or CSS styling,
inserting dynamic HTML content,
producing special audio-visual effects (animations).
Enriching a web user interface by
implementing advanced user interface components,
validating user input on the client side,
automatically pre-filling certain form fields.