how do i validate clone control using javascript please answer me thank you in advance.
please check this image i have to validate this Course Name Topic Name Description Parent Topic Name Action
<tr id="id" class="trrow">
<td class="col-md-4">
<select class="form-control select2 selectCourse" data-id="1" id="course_id_1" name="course_id[]" data-live-search="true" >
<option value="" selected="selected"> Select Course Name</option>
<?php
$sql = "SELECT * from course_master";
$result = $connect->query($sql);
while($row_pt = $result->fetch_array())
{
?>
<option value="<?php echo $row_pt['course_id']; ?>"><?php echo $row_pt['course_name']; ?></option>
<? php
}
?>
</select >
</td>
<td class="col-md-2"> <input class="form-control" id="topic_name1" name="topic_name[]" maxlength="250" value="" placeholder="Enter Topic Name" type="text"></td>
<td class="col-md-4"><textarea class="form-control" style="resize: none;" id="topic_description1" name="topic_description[]" rows="3" placeholder="Enter Description"></textarea></td>
<td class="col-md-2"><select class="form-control select2" id="parent_id_1" name="parent_id[]" data-live-search="true" ></select></td>
<td class="col-md-2"><input type="button" name="add" value="Add Row" class="btn btn-success"></td>
</tr>
</table>
</div>
<!-- /.box-body -->
<div class="box-footer">
<button type="submit" name="submit" id="button" class="btn btn-primary btn-form-action btn-submit">Save</button>
</div>
</form>
