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Check if XML Node Exists

jeffmace asked
Last Modified: 2012-06-27
In my previous question:

I had a XML file that I loop through and it winds up changing towards the end.  I want to know if there is a way to check if a node exists, if it does, continue the loop, if not, change to the next loop.  

Please view XML file in previous question.
<CFHTTP url="URL HERE" method="get">
<cfset xmlDoc = XMLParse(cfhttp.filecontent)>
  <cfloop from="1" to="#ArrayLen(xmlDoc.Demographics.response.pages.page)#" index="i">
    <cfloop from="1" to="#ArrayLen(xmlDoc.Demographics.response.pages.page[i].tables.table)#" index="x">
      <cfloop from="1" to="#ArrayLen(xmlDoc.Demographics.response.pages.page[i].tables.table[x].data.attribute)#" index="y">
        <cfloop from="1" to="#ArrayLen(xmlDoc.Demographics.response.pages.page[i].tables.table[x].data.attribute[y].values)#" index="z">
         Neighborhood: #xmlDoc.Demographics.response.pages.page[i].tables.table[x].data.attribute[y].values[z].neighborhood.value.xmlText#<br>
         City: #xmlDoc.Demographics.response.pages.page[i].tables.table[x].data.attribute[y].values[z].city.value.xmlText#<br>
         Nation: #xmlDoc.Demographics.response.pages.page[i].tables.table[x].data.attribute[y].values[z].nation.value.xmlText#<br><br>

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