Using jquery to get all checked checkboxes with a certain class name

I know I can get all checked checkboxes on a page using this:

$('input[type=checkbox]').each(function () {
    var sThisVal = (this.checked ? $(this).val() : "");
});

But I am now using this on a page that has some other checkboxes that I don't want to include. How would I change the above code to only look at checked checkboxes that have a certain class on them?

$('.theClass:checkbox:checked') will give you all the checked checkboxes with the class theClass.

$('input:checkbox.class').each(function () {
       var sThisVal = (this.checked ? $(this).val() : "");
  });

An example to demonstrate.

:checkbox is a selector for checkboxes (in fact, you could omit the input part of the selector, although I found niche cases where you would get strange results doing this in earlier versions of the library. I'm sure they are fixed in later versions). .class is the selector for element class attribute containing class.