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$get is part of the Microsoft AJAX JavaScript library - it's a replacement for document.getElementById<br />
<br />
Despite being part of the &quot;AJAX&quot; library, it's pure javascript, and doesn't involve the XMLHttpRequestObject, so it's not causing my slowdown.<br />
<br />
I tried setting length &nbsp;= 0 - for a dropdown of about 7,000 items it took about a half a second, and the time just skyrockets as it increases to 100,000.<br />
<br />
If this is the fastest I can get, then I guess I have to look elsewhere. &nbsp;Thanks.
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$get is part of the Microsoft AJAX JavaScript library - it's a replacement for document.getElementById

Despite being part of the "AJAX" library, it's pure javascript, and doesn't involve the XMLHttpRequestObject, so it's not causing my slowdown.

I tried setting length  = 0 - for a dropdown of about 7,000 items it took about a half a second, and the time just skyrockets as it increases to 100,000.

If this is the fastest I can get, then I guess I have to look elsewhere.  Thanks.

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Have you tried:<br />
$get(&quot;selectId&quot;).options=n<wbr />ull;<br />
OR <br />
$get(&quot;selectId&quot;).options=n<wbr />ew Array();
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Have you tried:
$get("selectId").options=null;
OR
$get("selectId").options=new Array();

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yeah, tried them both, both slow. &nbsp;Thanks for the help.
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yeah, tried them both, both slow.  Thanks for the help.

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Is there a fast way to clear all items from a javascript select? &nbsp;I've got about 100,000 items in there, returned from some query, and I want to simply dump its contents before the page posts back. &nbsp;Saying:<br />
<br />
$get(name).options.length = 0<br />
<br />
took too long, and <br />
<br />
$get(name).options = new Array(); &nbsp;threw an exception. &nbsp;Is there some other way?
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Is there a fast way to clear all items from a javascript select?  I've got about 100,000 items in there, returned from some query, and I want to simply dump its contents before the page posts back.  Saying:

$get(name).options.length = 0

took too long, and 

$get(name).options = new Array();  threw an exception.  Is there some other way?

Clearing options collection of Javascript select

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.