Reading a specific product from an xml file of products

Question

I have an XML file:

<?xml version="1.0" encoding="UTF-8"?>
<products>
    <product>
        <id>246</id>
        <code>Ash07-001</code>
        <image>C:\BowlPhotos\Thumbs\Ash07-001tmb.jpg</image>
    </product>
    <product>
        <id>247</id>
        <code>Ash07-004</code>
        <image>C:\BowlPhotos\Thumbs\NoBowltmb.jpg</image>
    </product>
    <product>
        <id>248</id>
        <code>Ash07-005</code>
        <image>C:\BowlPhotos\Thumbs\Ash07-005tmb.jpg</image>
    </product>
</products>

And read it with this code:

document.write("<table border='1'>");
var x=xmlDoc.getElementsByTagName("product");
for (i=0;i<x.length;i++)
{ 
          document.write("<tr><td>");
          document.write(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue);
          document.write("</td><td>");
          document.write(x[i].getElementsByTagName("code")[0].childNodes[0].nodeValue);
          document.write("</td><td>");
          document.write(x[i].getElementsByTagName("image")[0].childNodes[0].nodeValue);
          document.write("</td></tr>");
}
document.write("</table>");

And that works to get all of the file.

What if I only want the product with the id of 247? How do I pull that entire product out and print just that one?

Answer 1

document.write("<table border='1'>");
var x=xmlDoc.getElementsByTagName("product");
for (i=0;i<x.length;i++)
  { 
          if(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue != 247) continue;
          document.write("<tr><td>");
          document.write(x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue);
          document.write("</td><td>");
          document.write(x[i].getElementsByTagName("code")[0].childNodes[0].nodeValue);
          document.write("</td><td>");
          document.write(x[i].getElementsByTagName("image")[0].childNodes[0].nodeValue);
          document.write("</td></tr>");
  }
document.write("</table>");

You can write code like this . It will not execute code for displaying the content if the id is not 247

Answer 2

var x=xmlDoc.getElementsByTagName("product");
for (i=0;i<x.length;i++)
{ 
  var id= x[i].getElementsByTagName("id")[0].childNodes[0].nodeValue;
  if id="247"
   {
       // print what ever u want
   }
}