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 - Double backslash on quotes when JSON stringifying an array of strings - 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 - Double backslash on quotes when JSON stringifying an array of strings - Stack Overflow

    javascript - Double backslash on quotes when JSON stringifying an array of strings - Stack Overflow

    programmeradmin3浏览0评论

    I'm trying to stringify a JSON object that contains a string with quotes inside of it:

    array = ['bar "foo"']

    However, the string is created as: '["bar \\"foo\\""]' when I was hoping for something more along the lines of '["bar \"foo\""]'. Why are there two backslashes generated? Thanks

    I'm trying to stringify a JSON object that contains a string with quotes inside of it:

    array = ['bar "foo"']

    However, the string is created as: '["bar \\"foo\\""]' when I was hoping for something more along the lines of '["bar \"foo\""]'. Why are there two backslashes generated? Thanks

    • javascript
    Share Improve this question edited Jul 17, 2013 at 23:36 sheldonk asked Jul 17, 2013 at 23:09 sheldonksheldonk 2,6943 gold badges23 silver badges32 bronze badges 6
    • Why was the String created like that, exactly? – StackSlave Commented Jul 17, 2013 at 23:16
    • I called `JSON.stringify(array) and returned as that. – sheldonk Commented Jul 17, 2013 at 23:26
    • What would '['"wat"']' even mean? – ruakh Commented Jul 17, 2013 at 23:35
    • That was just a placeholder for my actual string. That has double quotes surrounding a word. – sheldonk Commented Jul 17, 2013 at 23:37
    • 2 how did you get the result as '["bar \\"foo\\""]'. console.log() ? – Hieu Nguyen Commented Jul 17, 2013 at 23:40
     |  Show 1 more ment

    1 Answer 1

    Reset to default 13

    Why are there two backslashes generated?

    Because backslashes must be escaped by backslashes to represent one single backslash in a string literal.

    The string

    '["bar \\"foo\\""]'
// or
"[\"bar \\\"foo\\\"\"]"

    represents the value

    ["bar \"foo\""]

    which is JSON for an array object containing the string value bar "foo".

    Probably the confusion was caused when you expected to see the value but the tool you used for that printed the string literal.

    与本文相关的文章

    发布评论

    评论列表(0)

    1. 暂无评论