How to cancel/abort jQuery AJAX request?

Matheus Mello
Matheus Mello
September 2, 2023
Cover Image for How to cancel/abort jQuery AJAX request?

šŸ¤” How to cancel/abort jQuery AJAX request?

šŸ“ Hey there tech-savvy folks! Have you ever encountered a situation where you need to cancel or abort an ongoing AJAX request? Well, worry not, because I've got you covered! In this blog post, we'll address this common issue and provide you with some easy solutions. So let's dive right in! šŸ’Ŗ

🧐 The Problem: Aborting an ongoing AJAX request

The scenario is this: You have an AJAX request that needs to be made every 5 seconds. However, if the previous request has not completed yet, you need to abort that request and make a new one. But how do you tackle this problem? Let's take a look at the code snippet provided to get a better understanding.

$(document).ready(
    var fn = function(){
        $.ajax({
            url: 'ajax/progress.ftl',
            success: function(data) {
                //do something
            }
        });
    };

    var interval = setInterval(fn, 500);
);

šŸ‘‰ The Solution: Aborting AJAX Request

To abort an ongoing AJAX request, you can make use of the jqXHR object returned by the $.ajax() method. This object provides a abort() method that allows you to cancel the request. You can store this jqXHR object in a variable and use it to abort the previous request before making a new one in the next interval. Let me show you how it can be done.

$(document).ready(
    var xhr; // Define a variable to store the jqXHR object

    var fn = function(){
        if (xhr) {
            // Abort the previous request if it exists
            xhr.abort();
        }
        
        xhr = $.ajax({
            url: 'ajax/progress.ftl',
            success: function(data) {
                //do something
            }
        });
    };

    var interval = setInterval(fn, 500);
);

šŸŽ‰ Problem Solved! You're a Pro now!

And there you have it! With a few simple lines of code, you can now cancel or abort an ongoing AJAX request and make a fresh one without any hassle. šŸ’Ŗ

šŸ“£ Take It to the Next Level!

Now that you've learned how to cancel an AJAX request, why not explore further possibilities? Experiment with different AJAX options, handle error cases, or implement additional functionalities based on your specific requirements. The possibilities are endless! Don't forget to share your experiences and creative solutions with us in the comments below! šŸ™Œ

šŸ¤— Time to Share & Engage

If you found this blog post helpful and informative, be sure to hit that share button and spread the knowledge among your fellow tech enthusiasts! Let's make the world of programming a better place, one blog post at a time. 😊

Is there any specific AJAX-related problem you want us to cover in our next blog post? Let us know in the comments section, and don't hesitate to reach out if you have any questions or need further assistance. Happy coding! šŸ’»šŸš€

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