javascript JQuery查找父div子标签
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JQuery find parent div child label
提问by Steve
When i click on expandable-icons-cancelI want to save a child label of form-groupdiv. Here is the structure:
当我单击expandable-icons-cancel 时，我想保存表单组div的子标签。这是结构：
<div class="form-group ">
<label class="" style="padding-top:10px;"> Long Title</label>
<span class="value ">
<div class="expandable">
<div class="expandable-icons">
<img class="expandable-icons-cancel" style="display:none;" src="test/cancel.png">
</div>
</div>
</span>
</div>
And function:
和功能：
jQuery('.expandable-icons-cancel').click(function() {
var parentDiv = jQuery(this).parents('div.expandable'); //-works, but how can i get upper?
// How to get 2 steps upper to form-group?
// How to get get child label text of form-group and save in var?
}
回答by Dallas
You can use closest(), like this
你可以closest()像这样使用
jQuery(this).closest(".form-group");
for the label text you can do...
对于标签文本，您可以执行...
jQuery(this).closest(".form-group").find("label").text();
if you know label will always be a direct child of .form-group, you can use children()in place of find(). If there is a possible for multiple labels and you only want to get the first, you can place eq(0)after getting the label.
如果您知道 label 始终是 的直接子代.form-group，则可以使用children()代替find()。如果有多个标签的可能，而你只想得到第一个，你可以eq(0)在得到标签后放置。
