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<p><strong>Description:</strong></p>
<p>The <code>preferenceForKey</code> method allows a previously stored preference to be restored.</p>
<p><strong>Syntax:</strong></p>
<pre class="codeblock" id="GUID-3B28AB5C-8147-4D73-8DD2-34ACE925C6E9">[string] window.widget.preferenceForKey(String key) </pre>
<p>or</p>
<pre class="codeblock" id="GUID-5B8798B4-FC24-4E21-914F-96AB4D51B404">[string] widget.preferenceForKey(String key)</pre>
<p><strong>Arguments:</strong></p>
<ul>
<li><p><code>key</code>:</p>
<p>A text string specifying the name that represents the preference to be restored.</p>
</li>
</ul>
<p><strong>Return value:</strong></p>
<p>A text string contains the preference value associated with the specified key.</p>
<p>If the key does not exist, the return value is "undefined".</p>
<p><strong>Example code:</strong></p>
<pre class="codeblock" id="GUID-DBFFAA0E-633F-4728-A307-15B343D9DC2D">// Check for the existence of searchKey
if(widget.preferenceForKey('searchKey'))
{
// get the searchKey from the preference
var searchArg = widget.preferenceForKey('searchKey');
// set the search argument to the search field
document.forms[0].searchKey.value = searchArg;
}</pre>
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