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 - Parsing number from string - Stack Overflow
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

javascript - Parsing number from string - Stack Overflow

programmeradmin3浏览0评论

How do I split selected value, seperate the number from text in jQuery?

Example:

myselect contains c4

Just get only the number 4.

$('select#myselect').selectToUISlider({
      sliderOptions: {
        stop: function(e,ui) {
          var currentValue = $('#myselect').val();
          alert(currentValue);
          var val = currentValue.split('--)
          alert(val);

        }
      }
    });

How do I split selected value, seperate the number from text in jQuery?

Example:

myselect contains c4

Just get only the number 4.

$('select#myselect').selectToUISlider({
      sliderOptions: {
        stop: function(e,ui) {
          var currentValue = $('#myselect').val();
          alert(currentValue);
          var val = currentValue.split('--)
          alert(val);

        }
      }
    });
Share Improve this question edited Sep 1, 2011 at 14:58 SLaks 888k181 gold badges1.9k silver badges2k bronze badges asked Sep 1, 2011 at 14:54 user683742user683742 802 silver badges8 bronze badges 2
  • Please use a meaningful, relevant title. – SLaks Commented Sep 1, 2011 at 14:57
  • There's a syntax error in the line above the last alert. Your second hyphen should be the ending single quote mark. With that said, is the value actually "c-4" rather than "c4" as you had said? If not, why are you splitting on '-'? – CashIsClay Commented Sep 1, 2011 at 14:58
Add a ment  | 

3 Answers 3

Reset to default 11

You can use regex to pull only the numbers.

var value = "c4";
alert ( value.match(/\d+/g) );

edit: changed regex to /\d+/g to match numbers greater than one digit (thanks @Joseph!)

1) if it's always : 1 letter that followed by numbers you can do simple substring:

'c4'.substring(1); // 4 
'c45'.substring(1); // 45

2) you can also replace all non-numeric characters with regular expression:

'c45'.replace(/[^0-9]/g, ''); // 45
'abc123'.replace(/[^0-9]/g, ''); // 123

If you know that the prefix is always only one character long you could use this:

var val = currentValue.substr(1);
发布评论

评论列表(0)

  1. 暂无评论