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Javascript: how do i check if node has children

Posted on 2014-03-03
Last Modified: 2014-03-12
I have the following XML and I want a function that will throw an error whenever there's an instance of an Empty <Name> (or where <Name> has no children). How do I capture that?


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i have the following code:
var nsPerson = dom.SelectNode(dom.Root, "Person/Name");
if (nsPerson)
	for (var i=0; i < nsPerson.Count; i++)	
		var nPerson =  nsPerson.GetItem(i);
		if (!nPerson)
		  //throw "Empty Person.";

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Question by:badtz7229
  • 2

Expert Comment

ID: 39902678
With document.getElementById("yourItem").parentNode; see http://www.w3schools.com/jsref/prop_node_parentnode.asp.
LVL 52

Expert Comment

by:Scott Fell, EE MVE
ID: 39902685
Sar1973 how would you update his code using your solution?

Accepted Solution

badtz7229 earned 0 total points
ID: 39913596
i answered my own question.

var nsPerson = dom.SelectNode(dom.Root, "Person/Name");
if (nsPerson)
      for (var i=0; i < nsPerson.Count; i++)      
            var nPerson =  nsPerson.GetItem(i);
            if (nPerson)
                           var hasChildren = nPerson.SelectSingle('*');
                           if (!hasChildren)
                                    throw "Empty, try again.";                  

Author Closing Comment

ID: 39922903
this worked

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