What is Ajax?

Asynchronous Javascript And XML, or AJAX for short, plays on parts of javascript for its function calls, and XML (or JSON) for data retrieval, specifically a component called the XMLhttprequest object. The “asynchronous” part of AJAX means that the data is sent and retrieved to and from the server independently of the main program so that web pages do not have to be reloaded every time there’s a need for information from the server. This exchange makes web pages under AJAX more interactive, versatile, and convenient. It also makes the web application more robust and user friendly.