• To: "Tomas Olsson" <tomas.olsson@s...>, <xml-dev@l...>
• Subject: RE: XPath, count function
• From: "Laurens van den Oever" <laurens@q...>
• Date: Thu, 6 May 2004 10:40:51 +0200
• Thread-index: AcQzRdX2l2SySyR2STmUOBzNB7AMDQ==
• Thread-topic: XPath, count function

> Is it possible to use that expression in a function in JavaScript and 
> return the number

AFAIK doesn't MSXML support this. Only a Node (selectSingleNode) or a
NodeList (selectNodes) can be retrieved using XPath in MSXML.

However, most other XPath engines do provide methods to retrieve a
number using XPath.

> do I have to use the selectNodes() and check the number of nodes in
the 
> nodeList?

Yep, but what is the problem of checking the .length property on a
NodeList?

Laurens
Q42

-----Original Message-----
From: Tomas Olsson [mailto:tomas.olsson@s...] 
Sent: woensdag 5 mei 2004 20:16
To: xml-dev@l...
Subject:  XPath, count function

Hi!

I wonder if its possible to use the count function of XPath in
JavaScript. 
I'm using MSXML.

I want to count the number of elements with the attribute fnamn="Tomas"
and 
return the number:

count(//*[@fnamn="Tomas"]))

Is it possible to use that expression in a function in JavaScript and 
return the number or do I have to use the selectNodes() and check the 
number of nodes in the nodeList?

/Tomas



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