JAVASCRIPT

jQuery Example to make GET method call with $.ajax()

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Created at Mar 14, 2024 16:07:05
Updated at Oct 03, 2024 05:01:02

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Below is the example to call certain URL with $.ajax()

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>jQuery AJAX Example</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function() {
    $("#loadDataBtn").click(function() {
        $.ajax({
            url: "https://api.example.com/data", // URL to your API endpoint
            type: "GET", // HTTP method (GET, POST, PUT, DELETE, etc.)
            dataType: "json", // Expected data type from the server
            success: function(data) {
                // Callback function executed if the request succeeds
                // 'data' contains the response from the server
                console.log("Data loaded successfully:", data);
                // You can process the 'data' here, for example, display it on the webpage
                $("#result").html("<pre>" + JSON.stringify(data, null, 2) + "</pre>");
            },
            error: function(xhr, status, error) {
                // Callback function executed if the request fails
                console.error("Request failed:", status, error);
                // You can handle errors here, for example, display an error message
                $("#result").text("Error loading data. Please try again later.");
            }
        });
    });
});
</script>
</head>
<body>

<button id="loadDataBtn">Load Data</button>

<div id="result"></div>

</body>
</html>

In this example:

The jQuery library is included via a CDN.
The JavaScript code is enclosed within $(document).ready() to ensure it executes after the DOM is fully loaded.
When the button with the ID loadDataBtn is clicked, an AJAX request is initiated using $.ajax().
The request is a GET request to the URL "https://api.example.com/data".
The dataType option is set to "json", indicating that we expect JSON data in response.
If the request is successful, the success callback function is executed, where you can handle the response data.
If the request fails, the error callback function is executed, where you can handle errors.
In this example, the response data is displayed within the <div id="result">.

Associated Data for the jQuery AJAX GET Example:

jQuery AJAX: A powerful JavaScript library that provides a convenient way to make asynchronous HTTP requests to web servers.
$.ajax(): A core function within jQuery that handles AJAX requests.
GET Request: An HTTP method commonly used to retrieve data from a server.
API Endpoint: A specific URL that represents a resource available through an API.
JSON (JavaScript Object Notation): A lightweight data-interchange format commonly used for data transmission on the web.
Callback Functions: Functions that are executed in response to specific events, like the success or failure of an AJAX request.
DOM (Document Object Model): A programming interface for HTML documents that represents the structure and content of a web page.
CDN (Content Delivery Network): A network of servers distributed globally that can deliver content (like libraries) more efficiently.

Additional Notes:

The code in the example assumes the existence of a hypothetical API endpoint at "https://api.example.com/data".
The response data is displayed in a `` tag to preserve formatting.
Error handling is implemented using the `error` callback function.
The example illustrates a basic implementation of an AJAX GET request. More advanced techniques exist for handling various scenarios, such as data serialization, authentication, and error handling.

Tags: $.ajax() jQuery