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 - Promises with lodash - Stack Overflow

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    I am trying to generate a list of users with _.times but I get an array of Promised objects. How do I output an array of plain objects?

    const createUser = async () => ({

});

const users = [];

_.times(5, () => users.push(createUser()));

Promise.all(users);

    Output

    [ Promise { { username: 'Armando', password: '8cw0W7Jpm0LSSS9' } },
  Promise { { username: 'Lauren', password: '9oFCK4rqLj_DGol' } },
  Promise { { username: 'Frederique', password: 'JXGOsjCCOMFBYFd' } },
  Promise { { username: 'Otilia', password: 'DnxArNIsjaVoMB2' } },
  Promise { { username: 'Elisabeth', password: 'kZbSlg7bVWiagFT' } } ]

    Expected

    [
  { username: 'Armando', password: '8cw0W7Jpm0LSSS9' },
  { username: 'Lauren', password: '9oFCK4rqLj_DGol' },
  { username: 'Frederique', password: 'JXGOsjCCOMFBYFd' },
  { username: 'Otilia', password: 'DnxArNIsjaVoMB2' },
  { username: 'Elisabeth', password: 'kZbSlg7bVWiagFT' }
]

    I am trying to generate a list of users with _.times but I get an array of Promised objects. How do I output an array of plain objects?

    const createUser = async () => ({

});

const users = [];

_.times(5, () => users.push(createUser()));

Promise.all(users);

    Output

    [ Promise { { username: 'Armando', password: '8cw0W7Jpm0LSSS9' } },
  Promise { { username: 'Lauren', password: '9oFCK4rqLj_DGol' } },
  Promise { { username: 'Frederique', password: 'JXGOsjCCOMFBYFd' } },
  Promise { { username: 'Otilia', password: 'DnxArNIsjaVoMB2' } },
  Promise { { username: 'Elisabeth', password: 'kZbSlg7bVWiagFT' } } ]

    Expected

    [
  { username: 'Armando', password: '8cw0W7Jpm0LSSS9' },
  { username: 'Lauren', password: '9oFCK4rqLj_DGol' },
  { username: 'Frederique', password: 'JXGOsjCCOMFBYFd' },
  { username: 'Otilia', password: 'DnxArNIsjaVoMB2' },
  { username: 'Elisabeth', password: 'kZbSlg7bVWiagFT' }
]
    • javascript
    • lodash
    Share Improve this question asked Jul 8, 2018 at 12:39 Chris MeekChris Meek 831 silver badge6 bronze badges 1
    • createUser is async, so use any of the mechanisms to wait for an array of promises? – Dave Newton Commented Jul 8, 2018 at 12:41
    Add a ment  | 

    2 Answers 2

    Reset to default 7

    Just await the result of Promise.all:

    const users = await Promise.all(userPromises)

    EDIT

    Using await will of course only work inside an async function -- thx for pointing that out in the ments Olian02.

    You can get it in the then callback of Promise.all:

    Promise.all(users).then(result => {
  console.log(result);
});

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