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 - Setting a length limit to <p> elements - Stack Overflow

programmeradmin1浏览0评论

What I need to acplish is simple - set the limit of the length of paragraph elements to 60 characters. The jQuery script I have written is as follows:

$('p.classname').each(function(){
var paragraph = $(p.description).text();
var strlength = paragraph.length;
var maxlength = 60;
strlength < maxlength; 
});

I can still include more than 60 characters in the elements. How can I limit it to 60?

What I need to acplish is simple - set the limit of the length of paragraph elements to 60 characters. The jQuery script I have written is as follows:

$('p.classname').each(function(){
var paragraph = $(p.description).text();
var strlength = paragraph.length;
var maxlength = 60;
strlength < maxlength; 
});

I can still include more than 60 characters in the elements. How can I limit it to 60?

Share Improve this question edited Nov 22, 2013 at 3:56 asked Nov 22, 2013 at 3:51 user2830163user2830163 1
  • 1 What's strlength < maxlength; supposed to do? – j08691 Commented Nov 22, 2013 at 3:53
Add a ment  | 

2 Answers 2

Reset to default 5

A simple approach using text() with a callback which loops though all elements in the same way each will:

$('p.classname').text(function(i, txt) {
    return txt ? txt.slice(0,60) : txt;
});

One major problem in your code is $('p.description').text(); will get text for all paragraphs in the page concatenated together. You need to isolate the instance of each paragraph. To do it within an each loop would be

$('p.description').each(function() {
    /* text for current paragraph */
    var text = $(this).text();
});

You are also using invalid selectors without quotes, and you never do anything with the text other than check its length.

Looks like you want to trim the contents to a max of 60 chars then

var maxlength = 60;
$('p.classname').text(function (_, text) {
    return $.trim(text).substring(0, maxlength);
});
发布评论

评论列表(0)

  1. 暂无评论
ok 不同模板 switch ($forum['model']) { /*case '0': include _include(APP_PATH . 'view/htm/read.htm'); break;*/ default: include _include(theme_load('read', $fid)); break; } } break; case '10': // 主题外链 / thread external link http_location(htmlspecialchars_decode(trim($thread['description']))); break; case '11': // 单页 / single page $attachlist = array(); $imagelist = array(); $thread['filelist'] = array(); $threadlist = NULL; $thread['files'] > 0 and list($attachlist, $imagelist, $thread['filelist']) = well_attach_find_by_tid($tid); $data = data_read_cache($tid); empty($data) and message(-1, lang('data_malformation')); $tidlist = $forum['threads'] ? page_find_by_fid($fid, $page, $pagesize) : NULL; if ($tidlist) { $tidarr = arrlist_values($tidlist, 'tid'); $threadlist = well_thread_find($tidarr, $pagesize); // 按之前tidlist排序 $threadlist = array2_sort_key($threadlist, $tidlist, 'tid'); } $allowpost = forum_access_user($fid, $gid, 'allowpost'); $allowupdate = forum_access_mod($fid, $gid, 'allowupdate'); $allowdelete = forum_access_mod($fid, $gid, 'allowdelete'); $access = array('allowpost' => $allowpost, 'allowupdate' => $allowupdate, 'allowdelete' => $allowdelete); $header['title'] = $thread['subject']; $header['mobile_link'] = $thread['url']; $header['keywords'] = $thread['keyword'] ? $thread['keyword'] : $thread['subject']; $header['description'] = $thread['description'] ? $thread['description'] : $thread['brief']; $_SESSION['fid'] = $fid; if ($ajax) { empty($conf['api_on']) and message(0, lang('closed')); $apilist['header'] = $header; $apilist['extra'] = $extra; $apilist['access'] = $access; $apilist['thread'] = well_thread_safe_info($thread); $apilist['thread_data'] = $data; $apilist['forum'] = $forum; $apilist['imagelist'] = $imagelist; $apilist['filelist'] = $thread['filelist']; $apilist['threadlist'] = $threadlist; message(0, $apilist); } else { include _include(theme_load('single_page', $fid)); } break; default: message(-1, lang('data_malformation')); break; } ?>