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 - Alpine.js - Show an input field and add focus to it at the same time - Stack Overflow

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    I have a button, and when a user clicks it, an input element should be shown and it should have focus.

    I tried this:

    <div x-data="{ show: false }">

    <input x-show="show" type="text" id="input" x-ref="input" />

    <button @click="show = !show; $refs.input.focus();">Button</button>

</div>

    But it does not work.

    I have a button, and when a user clicks it, an input element should be shown and it should have focus.

    I tried this:

    <div x-data="{ show: false }">

    <input x-show="show" type="text" id="input" x-ref="input" />

    <button @click="show = !show; $refs.input.focus();">Button</button>

</div>

    But it does not work.

    • javascript
    • alpine.js
    Share Improve this question asked May 11, 2021 at 8:29 Jeroen van RensenJeroen van Rensen 531 gold badge5 silver badges12 bronze badges 3
    • Are you sure alpine.js is being loaded correctly ? Because I've copied / pasted your code in a fiddle with alpine.js and it is working fine – Cedric Cholley Commented May 11, 2021 at 13:12
    • Yes I am. You can check out this editor: w3schools./code/tryit.asp?filename=GQEY8EWSLJHB When I click the button, the input should show and have focus – Jeroen van Rensen Commented May 11, 2021 at 16:23
    • Sorry I didn't understand that the not-working part was the focus. Craig E's answer below is the correct one (you may use setTimeout as well) – Cedric Cholley Commented May 12, 2021 at 19:21
    Add a ment  | 

    1 Answer 1

    Reset to default 16

    To put focus on the input immediately after showing it, you'll need to use Alpine's $nextTick function. Try this slightly altered version of your code:

    <div x-data="{ show: false }">

    <input x-show="show" type="text" id="input" x-ref="input" />

    <button @click="show = !show; $nextTick(() => { $refs.input.focus(); });">Button</button>

</div>

    Here's some more info about $nextTick: https://github./alpinejs/alpine#nexttick

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