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 - Getting dynamic $refs value in Vue2 - Stack Overflow
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

javascript - Getting dynamic $refs value in Vue2 - Stack Overflow

programmeradmin4浏览0评论

I'm working on a vue application. I have dynamic ref binding for input elements that accept quantity Something like this -

:ref="'qty' + index"

When I log this.$refs, I get all the refs. qty0, qty1, qty2 and so on.

My question is, how do I get the value of a particular input element using the ref?

I cannot hardcode this.$refs.qty0 as the index keeps changing.

I tried

let quantityRef = 'qty' + index;
console.log(index); // 0
console.log(quantityRef); // qty0
console.log(this.$refs.quantityRef); // undefined

Thanks in advance

I'm working on a vue application. I have dynamic ref binding for input elements that accept quantity Something like this -

:ref="'qty' + index"

When I log this.$refs, I get all the refs. qty0, qty1, qty2 and so on.

My question is, how do I get the value of a particular input element using the ref?

I cannot hardcode this.$refs.qty0 as the index keeps changing.

I tried

let quantityRef = 'qty' + index;
console.log(index); // 0
console.log(quantityRef); // qty0
console.log(this.$refs.quantityRef); // undefined

Thanks in advance

Share Improve this question edited Mar 16, 2022 at 12:55 Penny Liu 17.4k5 gold badges86 silver badges108 bronze badges asked Jan 26, 2018 at 0:54 VishwasVishwas 1,4988 gold badges22 silver badges34 bronze badges 1
  • Thanks, this helped me to find the doc. Just sharing this back for others. ponents-edge-cases – marlo Commented Oct 1, 2020 at 1:57
Add a ment  | 

1 Answer 1

Reset to default 16

Use a string key directly, with brackets:

this.$refs['qty' + index]
发布评论

评论列表(0)

  1. 暂无评论