Ajax

12 Sep 20252 minutes to read

Ajax class provides ability to make asynchronous HTTP request to the server

  var ajax = new Ajax("index.html", "GET", true);
  ajax.send().then(
              function (value) {
                  console.log(value);
              },
              function (reason) {
                  console.log(reason);
              });

Properties

data string|Object

Specifies the data to be sent.

Defaults to null

httpRequest XMLHttpRequest

Specifies the callback for creating the XMLHttpRequest object.

Defaults to null

mode boolean

A boolean value indicating whether the request should be sent asynchronous or not.

Defaults to true

type string

Specifies which HTTP request method to be used. For ex., GET, POST

Defaults to GET

url string

Specifies the URL to which request to be sent.

Defaults to null

Methods

getResponseHeader

To get the response header from XMLHttpRequest

Parameter	Type	Description
key	string	Key to search in the response header

Returns string

send

Send the request to server.

Parameter	Type	Description
data (optional)	string | Object	To send the user data

Returns Promise

Events

beforeSend Function

Specifies the callback function to be triggered before sending request to sever.
This can be used to modify the XMLHttpRequest object before it is sent.

onFailure Function

Triggers when XmlHttpRequest is failed.

onSuccess Function

Specifies callback function to be triggered after XmlHttpRequest is succeeded.
The callback will contain server response as the parameter.