form action, blank or period?

Question

I wonder the difference between:

<form method="post" action="">

and

<form method="post" action=".">

I have read this interesting thread . It looks like blank action is handled by all browsers. Some say the period is not a good idea but they don't say why. Furthermore, this thread is quite old now so i think it would be useful to have an update on the subject.

Thanks.

Answer 1

The blank represents that the result display of the form will display within the same page. Let say if you input the name, address, tel # etc.... and press the submit button. The collected information will display within the same page (probably below the form). I usually do this when i design a form to make sure it works. But there are various reason why they leave it blank instead putting another target page.