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; } ?>regex - How to remove special characters from a string using Javascript - Stack Overflow

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    regex - How to remove special characters from a string using Javascript - Stack Overflow

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    Could someone please help me to remove special characters from a string using javascript or Jquery.

    Note: I would like to remove only a specific set of special characters but not replacing it with any character. Below is the code i am trying. Thanks in advance.

    Code:

    filename = filename.replace(/[&\/\\#,+()$~%'":*?<>{}|]/g, '').replace(/\u201C/g, '').replace(/\u201D/g, '').replace(/\s+/g, '');

    Sample string Name:

    Test5 & special~, #, %, & , ,, , , , , , , , “”

    Actual Result:

    (Test5 space special-----------------------spaces till here)

    Expected Result:

    Test5 special

    Could someone please help me to remove special characters from a string using javascript or Jquery.

    Note: I would like to remove only a specific set of special characters but not replacing it with any character. Below is the code i am trying. Thanks in advance.

    Code:

    filename = filename.replace(/[&\/\\#,+()$~%'":*?<>{}|]/g, '').replace(/\u201C/g, '').replace(/\u201D/g, '').replace(/\s+/g, '');

    Sample string Name:

    Test5 & special~, #, %, & , ,, , , , , , , , “”

    Actual Result:

    (Test5 space special-----------------------spaces till here)

    Expected Result:

    Test5 special

    • javascript
    • regex
    • replace
    • trim
    Share Improve this question edited Mar 4, 2016 at 20:10 Eloy Pineda 2,18717 silver badges22 bronze badges asked Mar 4, 2016 at 18:33 user545359user545359 4136 gold badges16 silver badges29 bronze badges 1
    • 2 don't use blacklists, they will always let you down because of escaping, wierdo encoding, etc. use a char whitelist (with ranges). – dandavis Commented Mar 4, 2016 at 18:49
    Add a ment  | 

    1 Answer 1

    Reset to default 12

    Try with this function:

    function removeSpecialChars(str) {
  return str.replace(/(?!\w|\s)./g, '')
    .replace(/\s+/g, ' ')
    .replace(/^(\s*)([\W\w]*)(\b\s*$)/g, '$2');
}
    • 1st regex /(?!\w|\s)./g remove any character that is not a word or whitespace. \w is equivalent to [A-Za-z0-9_]
    • 2nd regex /\s+/g find any appearance of 1 or more whitespaces and replace it with one single white space
    • 3rd regex /^(\s*)([\W\w]*)(\b\s*$)/g trim the string to remove any whitespace at the beginning or the end.

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