将XML元素转换为本地javascript变量

我是一名编程专业的学生，我正在寻求对我的项目的帮助

我无法将XML元素设置为可以在代码中使用的本地javascript变量。我认为这与这段代码有关，但我不确定如何更正代码。我正在使用本地网络主机。任何建议都将不胜感激

包含上下文的项目文件夹：

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我很确定它与这个段有关：$（xmlDoc）.find（“catship”）.each（function（）{code>$（xmlDoc）.find（“catship”）.length返回什么？

var xmlToCatshipObjectList = function() {

    var r = $.Deferred();

    $.get(xmlDoc, function(doc){
        console.log("xmlToCatshipObjectList");
        $(xmlDoc).find("catship").each(function(){

            var $this = $(this);
            var health = $this.find('health-hits');
            var speed = $this.find('speed');
            var catNumber = $this.find('cats');
            var shipX = $this.find('xpos');
            var shipY = $this.find(k'ypos');


            shipList.push(
                new catship(health, speed, catNumber, shipX, shipY)
            );
        });
    });

    setTimeout(function () {
        r.resolve();
    }, 2500);

    return r;
};


function catship(health, speed, catNumber, shipX, shipY){
    this.health = health;
    this.speed = speed;
    this.catNumber = catNumber;
    this.shipX = shipX;
    this.shipY = shipY;
}