替换克隆的jquery对象中的字符串

Question

在下面的脚本中,我克隆了一个新的行形式tfoot并将其附加到表tbody

<script>
$('#checklist-builder .add-row').click(function(){
    var new_row = $('#checklist-builder>tfoot>tr').clone();
    $('#checklist-builder>tbody').append(new_row);
});
</script>

克隆行是:

<tr>
  <td>${j}</td>
  <td>
    <input size="2" type="hidden" value="" name="WhoChecklistField[1][${j}][id]" id="WhoChecklistField_1_${j}_id">      <input size="2" maxlength="2" type="text" value="" name="WhoChecklistField[1][${j}][weight]" id="WhoChecklistField_1_${j}_weight">    </td>
  <td>
    <input type="text" value="" name="WhoChecklistField[1][${j}][name]" id="WhoChecklistField_1_${j}_name">    </td>
  <td>
    <select size="1" name="WhoChecklistField[1][${j}][type]" id="WhoChecklistField_1_${j}_type">
      <option value="text">Text field</option>
      <option value="select">Select field</option>
      <option value="radio">Radio field</option>
      <option value="checkbox">Checkbox field</option>
    </select>
  </td>
</tr>

现在我想更换${j}用table size + 1,我怎么能代替${j}jQuery的克隆字符串？

Answer 1

new_row.html(function(i, oldHTML) {
    return oldHTML.replace(/\${j}/g, 'table_size');
});

DEMO