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Concatenate XML Nodes using Javascript

Hello everyone,

I have a question on XML with Javascript. Here is my situation:

I have two xml documents (1.xml and 2.xml) with similar structure:

[HTML]<person>
<data>
<value>1</value>
<value>2</value>
</data>
</person>[/HTML]

Using Javascript, I managed to load the 1.xml document, store the <value> nodes into a variable called valueNodes.

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  1. var xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
  2. xmlDoc.load("note.xml");
  3.  
  4. var personNode = xmlDoc.getElementsByTagName("person").item(0);
  5. var dataNode = personNode.getElementsByTagName("data").item(0);
  6. valueNodes = dataNode.getElementsByTagName("value");
  7.  
My question: when I load 2.xml, is there a method to get the <value> nodes and then concatenate them to nodes that I already have in valueNodes? I have tried

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  1. valueNodes = valueNodes + dataNode.getElementsByTagName("value");
and
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  1. valueNodes = valueNodes & dataNode.getElementsByTagName("value");
but to no avail.

Any suggestions are appreciated :) Thanks!


Yenyen
Aug 16 '07 #1
2 3169
Hello again,

To clarify my question, what I need is to concatenate the results of

dataNode.getElementsByTagName("value")

to valueNodes, that is, all the nodes. Just found out there is appendChild function, to use this I will need to iterate the results and append one by one, but this will take to much resource for me as there are about 6000 nodes to append.

Thanks again for any suggestions.


Yenyen
Aug 16 '07 #2
jkmyoung
2,057 Expert 2GB
I don't know if something like this would improve performance.

http://tom-lee.blogspot.com/2006/06/...elists_08.html
joinNodeLists: function(list1,list2){
var i = list2.length - 1;

do{ list1[list1.length] = list2[i];

}
while(i--);

return list1;
}
Aug 17 '07 #3

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