Submit form but not unload fields

Question

Is it possible to submit a form and the fields of that form after they are submitted to stay with values that they had, not to be empty ?

Answer 1

Using AJAX you can submit the form without leaving the page(and without erasing values), take a look at this answer Submit form using AJAX and jQuery

Answer 2

I suggest you to use JS validation or HTML5 form validation if you don't want to use JavaScript.

I prefer the second way which is clearer, but not sure to work in every browser.