jquery opposite of disabled code example

Example 1: jq html remove disabled

$('.disabledCheckboxes').removeAttr("disabled");

Example 2: not disabled jquery

$(document).ready(function(){
  $(':checkbox.selectall').on('click', function(){
    $(':checkbox[class='+ $(this).data('checkbox-name') + ']:not(:disabled)').prop("checked", $(this).prop("checked"));
    $(':checkbox[class='+ $(this).data('checkbox-name') + ']:not(:disabled)').trigger("change");
  });
});