What is Java Script(JS)

JavaScript is a lightweight, platform & scripting language.It is use for the development of web pages.JavaScript are used for Client-side developments as well as Server-side developments.. JavaScript contains many standard library of objects, like Array, Date, and Math.

1) Client-side

It control a browser and its Document Object Model (DOM). Client-side extensions allow an application to place the elements on an HTML form & respond to user events such as mouse clicks, form input, and page navigation.

2) Server-side

Server-side extensions allow an application to communicate with the database, and provide information to another of the application. or perform file manipulations on a server.