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---
title: selectedIndex
slug: Mozilla/Tech/XUL/Property/selectedIndex
translation_of: Archive/Mozilla/XUL/Property/selectedIndex
---
<div class="noinclude">
<span class="breadcrumbs XULRefProp_breadcrumbs">« <a href="/zh-CN/docs/XUL_Reference" title="XUL_Reference">XUL Reference</a></span></div>
<dl>
<dt>
<code><span><a href="https://developer.mozilla.org/zh-CN/docs/XUL/Property/selectedIndex">selectedIndex</a></span></code></dt>
<dd>
Type:
<i>
integer</i>
</dd>
<dd>
Returns the index of the currently selected item. You may select an item by assigning its index to this property. By assigning <code>-1</code> to this property, all items will be deselected.</dd>
</dl>
<div class="noinclude">
</div>
<p></p>
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