Parse and capture a value from an XML document by iterating elements

capture-id-from-xml-by-full-name.js

// <users>
//     <user id="1"><fullName>Hank Hill</fullName></user>
//     <user id="2"><fullName>Peggy Hill</fullName></user>
//     <user id="3"><fullName>Bobby Hill</fullName></user>
// </users>
 
function capture(response) {
    var xml = XML.parse(response.bodyAsString);
    var users = xml.childrenNamed("user");

    for (var i = 0; i < users.length; i++) {
        var user = users[i];

        if (user.childNamed('fullName').val == "Bobby Hill") {
            return user.attr['id']; // That's him!
        }
    }

    return ""; // Bobby Hill not found!
}