te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Add class to parent element - Stack Overflow

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    I know this has been asked many times before, but I could not find anything that worked. I will need to add a class to a div that gets autogenerated over my ul.

    This is my html code:

    <div class="wrapper">
    <ul id="bx-pager">
       <li><a><img></a></li>
       <li><a><img></a></li>
    </ul>
</div>

    I need to add a second class to div class "wrapper", but after what I have tried I can't get it to work. I would be nice if someone can help me out with this simple task, but showing me how to do it. I don't have much experience with jQuery, but need it now.

    I know this has been asked many times before, but I could not find anything that worked. I will need to add a class to a div that gets autogenerated over my ul.

    This is my html code:

    <div class="wrapper">
    <ul id="bx-pager">
       <li><a><img></a></li>
       <li><a><img></a></li>
    </ul>
</div>

    I need to add a second class to div class "wrapper", but after what I have tried I can't get it to work. I would be nice if someone can help me out with this simple task, but showing me how to do it. I don't have much experience with jQuery, but need it now.

    • javascript
    • jquery
    • html
    Share Improve this question asked Dec 12, 2013 at 9:44 Marius DjervMarius Djerv 2651 gold badge6 silver badges18 bronze badges 3
    • Please post full code to better understand – Amit Commented Dec 12, 2013 at 9:46
    • Well this is used with bxSlider, and when it automatic puts the UL list inside of a div class"bx-viewport", but I need to add a second class to bx-viewport, to change the css. – Marius Djerv Commented Dec 12, 2013 at 9:48
    • $('wrapper').addClass('newClass'); if you don't put your code how can we help you!!! how can we know which element/object you have?? – giammin Commented Dec 12, 2013 at 9:50
    Add a ment  | 

    4 Answers 4

    Reset to default 6

    You can use the JQuery parent selector:

    $('#bx-pager').parent('div').addClass('newClass');

    In pure javaScript

    this.parentElement.classList.add('newClass');

    Updated

    const myElement = document.querySelector('#bx-pager');
myElement.parentElement.classList.add('new-class');
    .new-class {
  background-color: tomato;
}
    <div class="wrapper">
  <ul id="bx-pager">
    <li>
      <a><img></a>
    </li>
    <li>
      <a><img></a>
    </li>
  </ul>
</div>

    Its simple find parent and add new class. You can use following code to find any parent and add new class.

    $(this).parent().addClass('newClass');

    Since you specified that you are new to query: here is the link to the working example.

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