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 to loop through DocumentFragment's children? - Stack Overflow
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javascript - How to loop through DocumentFragment's children? - Stack Overflow

programmeradmin7浏览0评论

How can I loop through DocumentFragment childNodes? I've tried doing the following:

console.log(result.childNodes);
console.log(result.childNodes.length);

But length seems to be 0 even if I can see the actual child nodes in firebug, like:

[div#tiptip_arrow]
0

Update:

/ This is not exactly what I'm doing, but demonstrates the problem: when I have a look in Firebug console, I see that the fragment has child nodes, but console.log(result.childNodes); yields [] for some reason. Why is that?

How can I loop through DocumentFragment childNodes? I've tried doing the following:

console.log(result.childNodes);
console.log(result.childNodes.length);

But length seems to be 0 even if I can see the actual child nodes in firebug, like:

[div#tiptip_arrow]
0

Update:

http://jsfiddle/ve5hf/ This is not exactly what I'm doing, but demonstrates the problem: when I have a look in Firebug console, I see that the fragment has child nodes, but console.log(result.childNodes); yields [] for some reason. Why is that?

Share Improve this question edited Jan 3, 2012 at 16:58 Fluffy asked Jan 3, 2012 at 16:22 FluffyFluffy 28.4k42 gold badges156 silver badges238 bronze badges 1
  • 1 of course it has no child Nodes it's an empty document fragment. Note that the reason you see data in childNodes when you log result is because console.log is live. – Raynos Commented Jan 3, 2012 at 17:33
Add a ment  | 

1 Answer 1

Reset to default 8
var o = document.createDocumentFragment();
o.appendChild(document.createElement('div'));
var childNodes = o.childNodes;
for (var i = 0, len = childNodes.length; i < len; i++) {
  console.log(childNodes[i].tagName);
}

.length does work.

We need more specifics. How do you create the document fragment? What browser?

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