Get a list of checked checkboxes in a div using jQuery

Question

I want to get a list of names of checkboxes that are selected in a div with certain id. How would I do that using jQuery?

E.g., for this div I want to get array ["c_n_0"; "c_n_3"] or a string "c_n_0;c_n_3"

<div id="checkboxes">
    <input id="chkbx_0" type="checkbox" name="c_n_0" checked="checked" />Option 1
    <input id="chkbx_1" type="checkbox" name="c_n_1" />Option 2
    <input id="chkbx_2" type="checkbox" name="c_n_2" />Option 3
    <input id="chkbx_3" type="checkbox" name="c_n_3" checked="checked" />Option 4
</div>

Answer 1

Would this do?

var selected = [];
$('div#checkboxes input[type=checkbox]').each(function() {
   if ($(this).checked) {
       selected.push($(this).attr('name'));
   }
});

Answer 2

$("#checkboxes").children("input:checked")

will give you an array of the elements themselves. If you just specifically need the names:

$("#checkboxes").children("input:checked").map(function() {
    return this.name;
});

Answer 3

Combination of two previous answers:

var selected = new Array();
$('#checkboxes input:checked').each(function() {
    selected.push($(this).attr('name'));
});