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 - How to unsubscribe to a callback for an event? - Stack Overflow

科技改变生活-雨落星辰 - 所有的伟大,都源于一个勇敢的开始

    最新消息：雨落星辰是一个专注网站SEO优化、网站SEO诊断、搜索引擎研究、网络营销推广、网站策划运营及站长类的自媒体原创博客
    你的位置： 首页>programmer>javascript - How to unsubscribe to a callback for an event? - Stack Overflow

    javascript - How to unsubscribe to a callback for an event? - Stack Overflow

    programmeradmin3浏览0评论

    In JavaScript, we can add multiple functions to body's onload or a button's onclick. Is it possible to remove one of them, if we have the reference to the function ?

    If possible, how to acplish the same in jQuery and also plain JavaScript ?

    In JavaScript, we can add multiple functions to body's onload or a button's onclick. Is it possible to remove one of them, if we have the reference to the function ?

    If possible, how to acplish the same in jQuery and also plain JavaScript ?

    • javascript
    Share Improve this question asked Nov 26, 2012 at 10:43 Amogh TalpallikarAmogh Talpallikar 12.2k15 gold badges84 silver badges135 bronze badges 6
    • Yes it is. – James Allardice Commented Nov 26, 2012 at 10:44
    • Is it just a spec ? or it is supported by major browsers. – Amogh Talpallikar Commented Nov 26, 2012 at 10:45
    • Did you read the page I linked to? It explains that. Also note that with jQuery you can use .off() or .unbind(). – James Allardice Commented Nov 26, 2012 at 10:46
    • Will it work even if the event was added without the use of addEvent Listener ? If I add it to onclick of a button, then can I pass 'click' in removeEvent Listener for type for the same element. – Amogh Talpallikar Commented Nov 26, 2012 at 10:51
    • No. See the answer by David for a solution to that. – James Allardice Commented Nov 26, 2012 at 10:51
     |  Show 1 more ment

    1 Answer 1

    Reset to default 13

    Yes, but it depends on how the handler was attached in the first place.

    If you used addEventListener, you can unbind using removeEventListener.

    If you used jQuery, you can use .unbind().

    If you used attachEvent, you can use detachEvent().

    If you used onclick or other onxxx functions, you can remove them by assigning null, f.ex elem.onclick = null.

    与本文相关的文章

    发布评论

    评论列表(0)

    1. 暂无评论