How to Submit a Form via AJAX
Introduction
AJAX (Asynchronous JavaScript and XML) is a technique that allows web applications to make requests to the server without reloading the entire page. This can be used to submit forms without refreshing the entire page, making the user experience more seamless.
Capturing the Form Submit Button
The first step is to capture the form submit button so that the default action does not take place. This can be done by adding an event listener to the form's submit button, as shown below:
```html document.getElementById("form_id").addEventListener("submit", function(event) { event.preventDefault(); }); ```Getting the Data from the Form
Once the form submit button has been captured, the next step is to get all of the data from the form. This can be done by using the FormData object, as shown below:
```javascript const form = document.getElementById("form_id"); const formData = new FormData(form); ```Associating the FormData Object with the Form Element
Once the FormData object has been created, it needs to be associated with the form element. This can be done by setting the form property of the FormData object to the form element, as shown below:
```javascript formData.form = form; ```Submitting the Form via AJAX
Once the FormData object has been associated with the form element, the form can be submitted via AJAX. This can be done by using the fetch() function, as shown below:
```javascript fetch('/submit_form.php', { method: 'POST', body: formData }) .then(response => { if (response.ok) { // Form submission was successful } else { // Form submission failed } }) .catch(error => { // An error occurred during form submission }); ```Conclusion
Submitting a form via AJAX is a simple and effective way to make your web applications more seamless. By following the steps outlined in this article, you can easily add AJAX form submission to your own projects.
Comments