Why does my Flask server reload the page when using AJAX to run code on button press?

Why does my Flask server reload the page when using AJAX to run code on a button press, and how can I prevent this behavior to ensure a smooth user experience?

When using AJAX to run code on a button press in a Flask server, the page reloading issue is often caused by the default behavior of the HTML form submission. By default, forms submit data to the server and reload the page. If your AJAX request is triggered by a form submission, this might be why the page is reloading.

Here's how you can prevent this behavior to ensure a smooth user experience:

Prevent Default Form Submission: Use JavaScript to prevent the form from submitting and reloading the page. This can be done by calling event.preventDefault() in your JavaScript code.

Handle the Button Click Event: Ensure that your AJAX request is properly handled in the button click event listener.

Explanation: Prevent Default Form Submission: The event.preventDefault() method is called within the button click event listener to prevent the form from submitting and reloading the page.

AJAX Request: The $.ajax() function is used to send an asynchronous request to the Flask endpoint. The data from the form is sent to the server, and you can handle the response accordingly.