当使用数字动态创建 id 时如何访问 DOM 元素
我正在构建一个论坛页面，该页面针对一个与我们所在的主题非常相似的主题提交了许多评论。因此，当我访问数据库来显示评论时，我需要动态创建我的内容的某些 div 的 id，如下所示：
while($row=mysql_fetch_assoc($result))
{
?>
<div id="post<?=$row["postId"] ?>" class="seeForumPost"><?=$row["post"] ?> </div> //this one
<div id="postFooter<?=$row["postId"] ?>" class="seeForumPostFooter"> //this one
<div class="byUser">
by <a class="commonLink" href="<?php print "seeUser.php?userId=".$row['userId'] ?>"> <strong><?=ucwords($row["firstname"]) ?> <?=ucwords($row["lastname"]) ?></strong></a>
</div>
<div class="likeThisForum"> Like this Post</div>
<div class="numberOfLikes"> (<?=$row["postLikes"] ?> likes) </div>
<div id="<?=$row["postId"] ?>" onclick="reportPostSpam()" class="markAsSpam">Mark as spam</div> //this one
</div>
<?php } ?>
没错。我在 ID 中使用数字，因此它们看起来像 "post26" "postFooter26" 和 "26" 但我不知道如何在我的ajax请求（原型）中获取这些DOM对象。我似乎无法处理那些 parentNode 和 previousSiblings 属性，因为 JavaScript 方法会抛出 cannot call property style of undefined 。感谢帮助。
I am building a forum page that submits a number of comments with respect to a subject much like the one we are on. Hence, when I acess the database to display the comments, I need to dynamically create the id of some div's of my content, something like this:
while($row=mysql_fetch_assoc($result))
{
?>
<div id="post<?=$row["postId"] ?>" class="seeForumPost"><?=$row["post"] ?> </div> //this one
<div id="postFooter<?=$row["postId"] ?>" class="seeForumPostFooter"> //this one
<div class="byUser">
by <a class="commonLink" href="<?php print "seeUser.php?userId=".$row['userId'] ?>"> <strong><?=ucwords($row["firstname"]) ?> <?=ucwords($row["lastname"]) ?></strong></a>
</div>
<div class="likeThisForum"> Like this Post</div>
<div class="numberOfLikes"> (<?=$row["postLikes"] ?> likes) </div>
<div id="<?=$row["postId"] ?>" onclick="reportPostSpam()" class="markAsSpam">Mark as spam</div> //this one
</div>
<?php } ?>
Thats right. I am using numbers inside my id, so they appears like "post26" "postFooter26" and "26"
But I don't know how to fetch these DOM objects in my ajax request (prototype). I cant't seem to deal with those parentNode and previousSiblings properties because then the javascript method throws cannot call property style of undefined. Helps are appreciated.
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你总是可以尝试：
会更简单
You can always try:
Would be much simplier