权限没有，则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存，跨进程需要再加一层缓存：redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - How do I append children into a div in one line - Stack Overflow

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    javascript - How do I append children into a div in one line - Stack Overflow

    programmeradmin10浏览0评论

    I want an element to first be replaced with a div then that div will have some children by append():

    $(el).html('<div></div>').append('<span></span>').append('<span></span>')

    doesn't give me what I want since the div and the spans are siblings.

    I also tried:

    $(el).replaceWith('<div></div>').append('<span></span>').append('<span></span>')

    without success. This line doesn't work with AngularJS (directives).

    Is there a simple way to make the spans children of the div?

    UPDATE:

    This is what I ended up using:

    $(element)
  .html($('<div class="property-filter"></div>')
  .append(labelElm)
  .append(amountElm)
  .append(sliderElm));

    since it was simple to understand (to me).

    Thanks for all the solutions!

    I want an element to first be replaced with a div then that div will have some children by append():

    $(el).html('<div></div>').append('<span></span>').append('<span></span>')

    doesn't give me what I want since the div and the spans are siblings.

    I also tried:

    $(el).replaceWith('<div></div>').append('<span></span>').append('<span></span>')

    without success. This line doesn't work with AngularJS (directives).

    Is there a simple way to make the spans children of the div?

    UPDATE:

    This is what I ended up using:

    $(element)
  .html($('<div class="property-filter"></div>')
  .append(labelElm)
  .append(amountElm)
  .append(sliderElm));

    since it was simple to understand (to me).

    Thanks for all the solutions!

    • javascript
    • jquery
    • html
    • dom
    Share Improve this question edited Sep 4, 2012 at 6:52 Danil Speransky 30.5k6 gold badges69 silver badges78 bronze badges asked Aug 23, 2012 at 12:24 wingywingy 5592 gold badges6 silver badges14 bronze badges 3
    • 2 I'm curious as to why this must be done in one line? Just because you can doesn't mean you should. – jsmith Commented Aug 23, 2012 at 12:29
    • I know. But if it's possible that would be better. Less code. More succinct code. – wingy Commented Aug 23, 2012 at 12:36
    • 1 Just because you're writing LESS code, doesn't mean you are doing a good thing. Think about the readability of your code as you go from left to right. What happens when you e back months later and you need to debug? Your readability decreases with each function you daisy-chain onto the last. If you want less code in production, why not use a tool to minify? – jsmith Commented Aug 23, 2012 at 12:41
    Add a ment  | 

    6 Answers 6

    Reset to default 5

    Your code does not work because $(el).html('<div></div>') returns $(el). It is for chain of methods.

    $(el).html($('<div></div>').append('<span></span>').append('<span></span>'));​

    Or

    $('<div></div>').append('<span></span>').append('<span></span>').appendTo(el);

    Why not simply do this?

    $(el).html('<div><span></span><span></span></div>')

    $(el).html($('<div />').append('<span></span>').append('<span></span>'))

    use this

    var div = $('<div></div>').append('<span></span>').append('<span></span>');

$(el).parent().html(div);​

    This replaces the contents of the $(el) like you asked:

    $(el).html('<span />').append('<span />').wrapInner('<div />');​

    Try this 

    var div= $('<div></div>')
var mm= $('<span>b</span>')
var bnd= div.append(mm)
var fresult=bnd.append(mm)
fresult.appendTo(el)​

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