jQuery ajaxSetup() Method (original) (raw)

Last Updated : 12 Jul, 2023

The **ajaxSetup() method in jQuery is used to set the default values for future AJAX requests.

**Syntax:

$.ajaxSetup( {name:value, name:value, ... } )

**Parameters:

• **type: It is used to specify the type of request.
• **url: It is used to specify the URL to send the request to.
• **username: It is used to specify a username to be used in an HTTP access authentication request.
• **xhr: It is used for creating the XMLHttpRequest object.
• **async: It's default value is true. It indicates whether the request should be handled asynchronously or not.
• **beforeSend(xhr): It is a function that is to be run before the request is sent.
• **dataType: The data type expected of the server response.
• **error(xhr, status, error): It is used to run if the request fails.
• **global: It's default value is true. It is used to specify whether or not to trigger global AJAX event handles for the request.
• **ifModified: It's default value is false. It is used to specify whether a request is only successful if the response has changed since the last request.
• **jsonp: A string overriding the callback function in a jsonp request.
• **jsonpCallback: It is used to specify a name for the callback function in a jsonp request.
• **cache: It's default value is true. It indicates whether the browser should cache the requested pages.
• **complete(xhr, status): It is a function that is to be run when the request is finished.
• **contentType: It's default value is: "application/x-www-form-urlencoded" and it is used when data send to the server.
• **context: It is used to specify the "this" value for all AJAX-related callback functions.
• **data: It is used to specify data to be sent to the server.
• **dataFilter(data, type): It is used to handle the raw response data of the XMLHttpRequest.
• **password: It is used to specify a password to be used in an HTTP access authentication request.
• **processData: It's default value is true. It is used to specify whether or not data sent with the request should be transformed into a query string.
• **scriptCharset: It is used to specify the charset for the request.
• **success(result, status, xhr): It is to be run when the request succeeds.
• **timeout: It is the local timeout for the request. It is measured in terms of milliseconds.
• **traditional: It is used to specify whether or not to use the traditional style of param serialization.

****Example 1:**This example uses ajaxSetup() method to call data from other files.

**geeks1_data.txt: This text file is called within an HTML file.

Welcome to GeeksforGeeks

**gfg.html

html `

<script src=

"" title="undefined" rel="noopener noreferrer">https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">

<script>
    $(document).ready(function () {
        $("li:parent").css("background-color", "green");
    });
</script>

<h1 id="geeks1" style="color:green">
    GeeksForGeeks
</h1>
<h2 id="geeks2">
    jQuery ajaxSetup() Method
</h2>
<h3></h3>

<button>Click</button>

<!-- Script to use ajaxSetup() method -->
<script>
    $(document).ready(function () {
        $("button").click(function () {
            $.ajaxSetup({
                url: "geeks1_data.txt",
                success: function (result) {
                    $("h3").html(result);
                }
            });
            $.ajax();
        });
    });
</script>

`

**Output:

**Example 2: This example illustrates ajaxSetup() method.

html `

<script src=

"" title="undefined" rel="noopener noreferrer">https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">

<script>
    $(document).ready(function () {
        $("li:parent").css("background-color", "green");
    });
</script>

<h1 id="geeks1" style="color:green">
    GeeksForGeeks
</h1>
<h2 id="geeks2">
    jQuery ajaxSetup() Method
</h2>

<button>Click</button>

<!-- Script to use jQuery ajaxSetup() Method -->
<script>
    $(document).ready(function () {
        $("button").click(function () {
            $.ajaxSetup({
                url: "geek2_dat.txt", error: function (xhr) {
                    alert("Error: " + xhr.status + " " + xhr.statusText);
                }
            });
            $.ajax();
        });
    });
</script>

`

**Output:

other files