1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
<!DOCTYPE html>
<html lang='en'><head><meta http-equiv='content-type' content='text/html; charset=UTF-8' /></head><body>
<div class="entry-content">
<div class="entry-title roundTop">
<h1 class="jq-clearfix">:has() Selector</h1>
<div class="entry-meta jq-clearfix">
Categories:
<span class="category"><a href="http://api.jquery.com/category/selectors/" title="View all posts in Selectors">Selectors</a> > <a href="http://api.jquery.com/category/selectors/content-filter-selector/" title="View all posts in Content Filter">Content Filter</a></span> | <span class="category"><a href="http://api.jquery.com/category/selectors/" title="View all posts in Selectors">Selectors</a> > <a href="http://api.jquery.com/category/selectors/jquery-selector-extensions/" title="View all posts in jQuery Extensions">jQuery Extensions</a></span>
</div>
</div>
<div id="has1" class="entry selector">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">has</span> selector</h2>
<div class="jq-box roundBottom entry-details">
<h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.1.4/">1.1.4</a></span>jQuery(':has(selector)')</h4>
<ul class="signatures"><li><dl class="arguments">
<dt>selector</dt>
<dd>Any selector.</dd>
</dl></li></ul>
<p class="desc"><strong>Description: </strong>Selects elements which contain at least one element that matches the specified selector.</p>
<div class="longdesc"><p>The expression <code>$('div:has(p)')</code> matches a <code><div></code> if a <code><p></code> exists anywhere among its descendants, not just as a direct child.</p></div>
<h3 id="notes-0">Additional Notes:</h3>
<div class="longdesc"><ul><li>Because <code>:has()</code> is a jQuery extension and not part of the CSS specification, queries using <code>:has()</code> cannot take advantage of the performance boost provided by the native DOM <code>querySelectorAll()</code> method. For better performance in modern browsers, use <code>$("your-pure-css-selector").has(selector/DOMElement)</code> instead.</li></ul></div>
<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">Adds the class "test" to all divs that have a paragraph inside of them.</span></h4>
<pre class="prettyprint"><code class="example demo-code"><!DOCTYPE html>
<html>
<head>
<style>
.test{ border: 3px inset red; }
</style>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
<div><p>Hello in a paragraph</p></div>
<div>Hello again! (with no paragraph)</div>
<script>$("div:has(p)").addClass("test");</script>
</body>
</html></code></pre>
<h4>Demo:</h4>
<div class="demo code-demo"></div>
</div></div>
</div>
</div>
</div>
</body></html>
|
