find all checkbox inside div jquery

1var values=[];
2$('input[name="your-checkbox-name[]"]:checked').each(function () {
3  values[values.length] = (this.checked ? $(this).val() : "");
4});

1$('input:checkbox').prop('checked', true);

1$('.theClass:checkbox:checked')

1$('#selectChb').click(function(){ 
2     $(':checkbox').prop("checked", true);
3});
4

1$('#select_all').change(function() {
2  var checkboxes = $(this).closest('form').find(':checkbox');
3  checkboxes.prop('checked', $(this).is(':checked'));
4});

1<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
2<form>
3  <table>
4    <tr>
5      <td><input type="checkbox" id="select_all" /></td>
6    </tr>
7    <tr>
8      <td><input type="checkbox" name="select[]" /></td>
9    </tr>
10    <tr>
11      <td><input type="checkbox" name="select[]" /></td>
12    </tr>
13    <tr>
14      <td><input type="checkbox" name="select[]" /></td>
15    </tr>
16  </table>
17</form>