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 - Textarea count characters validation - Stack Overflow

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    javascript - Textarea count characters validation - Stack Overflow

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    i'm writing an asp page using vb and i need to count the number of characters in my textarea and display the message:"X characters Remaining."

    that's my asp code:

      <td valign='top'>
                <textarea rows="5" id="content_txt" name="TextArea1" runat="server" maxlength="50"></textarea>
            </td>

    i'm writing an asp page using vb and i need to count the number of characters in my textarea and display the message:"X characters Remaining."

    that's my asp code:

      <td valign='top'>
                <textarea rows="5" id="content_txt" name="TextArea1" runat="server" maxlength="50"></textarea>
            </td>
    • javascript
    • jquery
    • asp
    • vb
    Share Improve this question edited Sep 4, 2013 at 8:06 Ahmad Anas 1138 bronze badges asked Sep 4, 2013 at 7:54 User7291User7291 1,1153 gold badges29 silver badges72 bronze badges 1
    • possible duplicate of Count characters in textarea – mplungjan Commented Sep 4, 2013 at 7:58
    Add a ment  | 

    5 Answers 5

    Reset to default 3

    Here is a JSFiddle

    HTML:

    <textarea rows="5" id="content_txt" name="TextArea1" runat="server" maxlength="50"></textarea>
<p id="message"></p>

    JS:

    var area = document.getElementById("content_txt");
var message = document.getElementById("message");
var maxLength = 50;
var checkLength = function() {
    if(area.value.length < maxLength) {
        message.innerHTML = (maxLength-area.value.length) + " characters remaining";
    }
}
setInterval(checkLength, 300);

    I have a little but functional solution my friend, try this:

    HTML CODE

        <textarea name="message"placeholder="Reply message..." maxlength="155" onkeyup="counter(this);"></textarea>
<div id="counter_div">0/155</div>

    JAVASCRIPT CODE

    <script>
    function counter(msg){
        document.getElementById('counter_div').innerHTML = msg.value.length+'/155';
    }
</script>

    This case limit 155 characters.

    this will return current length of the textarea using jquery var length = $('#content_txt').val().length; and rest of the logic you have to give it a try..

    try this

      function fix(dis)
    {
      var total=50; // ho many you want to show
      var val = dis.value;

      var count = val.length;
      document.getElementById('remaining').innerHTML= total-count;
    }

    <td valign='top'>
        <textarea rows="5" id="content_txt" name="TextArea1" runat="server" maxlength="50" onkeyup="fix(this)"></textarea>
    </td>

    <p><span id="remaining">0</span> Characters remaining</p>

    <td valign='top'>
  <textarea rows="5" id="content_txt" name="TextArea1" runat="server" maxlength="50"></textarea>
  <span id="character-count">100</span> characters remaining.
</td>


var totallength = 100;

$('textarea#input').on('keydown, keyup', function(e) {
     $('span#character-count').text((totallength - input.val().length));
});

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