Introduction

JavaScript is a cross-platform,object-oriented scripting language.It is a small and lightweight language. Inside a host environment(for example:a web browser).JavaScript can be connected to objects of its environment to provide programmatic control over them.

JavaScript contains a standard library of objects,such as Array,Date and. Math,and a core set of lannguage elements such as operators,control structures,and statements. Core JavaScript can be extended for a variety o purposes by supplementing it with additional objects;for example:

Client-side JavaScript extends the core language by supplying

JS Documentation