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
57
58
59
60
61
|
<!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">.context</h1>
<div class="entry-meta jq-clearfix">
Categories:
<span class="category"><a href="http://api.jquery.com/category/internals/" title="View all posts in Internals">Internals</a></span> | <span class="category"><a href="http://api.jquery.com/category/properties/" title="View all posts in Properties">Properties</a> > <a href="http://api.jquery.com/category/properties/jquery-object-instance-properties/" title="View all posts in Properties of jQuery Object Instances">Properties of jQuery Object Instances</a></span>
</div>
</div>
<div id="context1" class="entry property">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">context</span> <span class="returns">Returns: <a class="return" href="http://api.jquery.com/Types/#Element">Element</a></span>
</h2>
<div class="jq-box roundBottom entry-details">
<p class="desc"><strong>Description: </strong>The DOM node context originally passed to jQuery(); if none was passed then context will likely be the document.</p>
<ul class="signatures"><li class="signature" id="context"><h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.3/">1.3</a></span>context</h4></li></ul>
<div class="longdesc">
<p>The <code>.live()</code> method for binding event handlers uses this property to determine the root element to use for its event delegation needs.</p>
<p>
The value of this property is typically equal to <code>document</code>, as this is the default context for jQuery objects if none is supplied. The context may differ if, for example, the object was created by searching within an <code><iframe></code> or XML document.</p>
<p>Note that the context property may only apply to the elements originally selected by <code>jQuery()</code>, as it is possible for the user to add elements to the collection via methods such as <code>.add()</code> and these may have a different context.</p>
</div>
<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">Determine the exact context used.</span></h4>
<pre class="prettyprint"><code class="example demo-code"><!DOCTYPE html>
<html>
<head>
<style>
body { cursor:pointer; }
div { width:50px; height:30px; margin:5px; float:left;
background:green; }
span { color:red; }
</style>
<script src="http://code.jquery.com/jquery-1.7rc2.js"></script>
</head>
<body>
Context:<ul></ul>
<script>$("ul")
.append("<li>" + $("ul").context + "</li>")
.append("<li>" + $("ul", document.body).context.nodeName + "</li>");
</script>
</body>
</html></code></pre>
<h4>Demo:</h4>
<div class="demo code-demo"></div>
</div></div>
</div>
</div>
</div>
</body></html>
|
