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<h1 class="jq-clearfix">jQuery.isPlainObject()</h1>
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Categories:
<span class="category"><a href="http://api.jquery.com/category/utilities/" title="View all posts in Utilities">Utilities</a></span>
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<div id="jQuery-isPlainObject1" class="entry method">
<h2 class="jq-clearfix roundTop section-title">
<span class="name">jQuery.isPlainObject( object )</span> <span class="returns">Returns: <a class="return" href="http://api.jquery.com/Types/#Boolean">Boolean</a></span>
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<p class="desc"><strong>Description: </strong>Check to see if an object is a plain object (created using "{}" or "new Object").</p>
<ul class="signatures"><li class="signature" id="jQuery-isPlainObject-object">
<h4 class="name">
<span class="versionAdded">version added: <a href="/category/version/1.4/">1.4</a></span>jQuery.isPlainObject( object )</h4>
<p class="arguement"><strong>object</strong>The object that will be checked to see if it's a plain object.</p>
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<div class="longdesc">
<p><strong>Note:</strong> Host objects (or objects used by browser host environments to complete the execution environment of ECMAScript) have a number of inconsistencies which are difficult to robustly feature detect cross-platform. As a result of this, <code>$.isPlainObject()</code> may evaluate inconsistently across browsers in certain instances.</p>
<p>An example of this is a test against <code>document.location</code> using <code>$.isPlainObject()</code> as follows:</p>
<pre>
console.log($.isPlainObject(document.location));
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<p>which throws an invalid pointer exception in IE8. With this in mind, it's important to be aware of any of the gotchas involved in using <code>$.isPlainObject()</code> against older browsers. Some basic example of use-cases that do function correctly cross-browser can be found below.</p>
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<h3>Example:</h3>
<div class="entry-examples" id="entry-examples"><div id="example-0">
<h4><span class="desc">Check an object to see if it's a plain object.</span></h4>
<pre class="prettyprint"><code class="example">jQuery.isPlainObject({}) // true
jQuery.isPlainObject("test") // false</code></pre>
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