how do I find the number of xml children in AS3

问题

so live docs says this for calling .lenght() on an XML object

For XML objects, this method always returns the integer 1. The length() method of the XMLList class returns a value of 1 for an XMLList object that contains only one value.

i called it on an xml that looked like this:

<xml>
<picture>1</picture>
<picture>2</picture>
</xml>

i tried myXML.lenght() and it reallt returned 1. how do i get the number of children in my xml?

回答1:

Try

var length:int = myXML.children().length();

Also, this is the method I use to make sure the children are really Elements, and not just Text Nodes.

    public static function getNumberChildElements(node:XML):int{
        var count:int = 0;
        for (var i:int=0; i<node.children().length(); i++){
            if (node.children()[i].nodeKind() == "element")
                count++;
        }
        return count;
    }

回答2:

Try:

var totPictures=myXML.picture.length();
trace(totPictures); //2

回答3:

Also myXML.*.length() will work

回答4:

I think this is the right way.

var totItems:int = myXML.elements().children().length();
trace(totItems);

回答5:

Try the following:

var num:int = myXml.length();

来源：https://stackoverflow.com/questions/2655514/how-do-i-find-the-number-of-xml-children-in-as3