Disable button if all checkboxes are unchecked and enable it if at least one is checked

Question

I have a table with a checkbox in each row and a button below it. I want to disable the button if at least one checkbox is checked.

Answer 1

Try this:

$('tbody').click(function () {

   if ($('.myCheckBox:checked').length >= 1) { 
           $('#confirmButton').prop("disabled", true);
       }
   else {
            $('#confirmButton').prop("disabled", false);
   } 

 });

DEMO