calculate the number of html checkbox checked using jquery

Question

Hi how can i calculate the number of checkboxes that a user has checked using jquery?

what i want to do is limiting the number of checking for checkboxes in a form to 10 for example and when a user exceeds this range display a warning message.

Answer 1

try this:

Method 1:

alert($('#checkbox_id_here :checked').size());

Method 2:

alert($('input[name=checkbox_name]').attr('checked'));

Method: 3

alert($(":checkbox:checked").length;);

Answer 2

Have a look here

jquery Selectors/checked

Answer 3

How to get a count of all checked checkboxes on a page

Answer 4

This should work:

alert($("input:checkbox:checked").length);