[thelist] does JavaScript have an equivalent to IsDefined()?

[Jeff Howden]

sarah,

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> From: Sarah
> 
> More ASP/JavaScript woes :) Is there a JavaScript
> equivalent to the ColdFusion IsDefined() function? I
> would like to be able to test to see if a variable is
> defined in the querystring, but none of the methods I
> have tried has worked. I have tried:
>
> if (Request.QueryString('id') == null) //...
> if (Request.QueryString('id') == undefined) //...
> if (Request.QueryString('id') == 'undefined') //...
> if (typeof Request.QueryString('id') == undefined) //...
> if (typeof Request.QueryString('id') == 'undefined') //...
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is this client-side or server-side?

either way, what does Request.QueryString('id') return?

.jeff

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Jeff Howden - Web Application Specialist
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