如何从jQuery对象中获取选择器 [英] How can I get selector from jQuery object
问题描述
$("*").click(function(){
$(this); // how can I get selector from $(this) ?
});
是否可以通过从 $获取选择器的简单方法（这个） ？有一种方法可以通过选择器选择元素，但从元素获取选择器怎么样？
Is there an easy way to get selector from $(this)? There is a way to select an element by its selector, but what about getting the selector from element?
推荐答案
好的，所以在上面的评论中，提问者 Fidilip 说他/她真正想要的是获得当前元素的路径。
Ok, so in a comment above the question asker Fidilip said that what he/she's really after is to get the path to the current element.
这是一个脚本，它将攀爬DOM祖先树，然后构建相当具体的选择器，包括任何 id 或
Here's a script that will "climb" the DOM ancestor tree and then build fairly specific selector including any id or class attributes on the item clicked.
查看jsFiddle上的工作： http://jsfiddle.net/Jkj2n/209/
See it working on jsFiddle: http://jsfiddle.net/Jkj2n/209/
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function() {
$("*").on("click", function(e) {
e.preventDefault();
var selector = $(this)
.parents()
.map(function() { return this.tagName; })
.get()
.reverse()
.concat([this.nodeName])
.join(">");
var id = $(this).attr("id");
if (id) {
selector += "#"+ id;
}
var classNames = $(this).attr("class");
if (classNames) {
selector += "." + $.trim(classNames).replace(/\s/gi, ".");
}
alert(selector);
});
});
</script>
</head>
<body>
<h1><span>I love</span> jQuery</h1>
<div>
<p>It's the <strong>BEST THING</strong> ever</p>
<button id="myButton">Button test</button>
</div>
<ul>
<li>Item one
<ul>
<li id="sub2" >Sub one</li>
<li id="sub2" class="subitem otherclass">Sub two</li>
</ul>
</li>
</ul>
</body>
</html>
例如，如果你要点击下面HTML中的第二个列表嵌套列表项，你会得到以下结果：
For example, if you were to click the 2nd list nested list item in the HTML below, you would get the following result:
HTML> BODY> UL> LI> UL> LI＃sub2.subitem.otherclass
这篇关于如何从jQuery对象中获取选择器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
