*The jQuery $.ajax() function is used to perform an asynchronous HTTP request.
*$.ajax(url[, options])-The url parameter is a string containing the URL you want to reach with the Ajax call.
*$.ajax([options])- while options is an object literal containing the configuration for the Ajax request.
*The option Parameter
1-success: A function to be called if the request succeeds.
2-dataType: The type of data expected back from the server.
3-error: A function to be called if the request fails.
4-data: The data to send to the server when performing the Ajax request.
*$.ajax(). It allows you to perform Ajax request with a lot of control over how the request is sent to the server and how the response is processed.