react-examples/professional_javascript_for_web/ch19/QueryingExample01.htm at master · zhangjunhd/react-examples · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>Querying Example</title>
</head>
<body>
    <p>This example only works in Firefox 1.5+.</p>
    <script type="text/javascript;e4x=1">

        var employees =  <employees>
                            <employee position="Software Engineer">
                                <name>Nicholas C. Zakas</name>
                            </employee>
                            <employee position="Salesperson">
                                <name>Jim Smith</name>
                            </employee>
                        </employees>;

        var cats = employees.cat;
        alert(cats.length());     //0

        var allDescendants = employees..*;     //get all descendants of <employees/>
        alert(allDescendants);

        var employees2 = employees.employee.parent();

        alert(employees.contains(employees2));
    </script>
</body>
</html>