我有一个包含以下内容的XML文件：
<directory>
<app>
<title>Carrot</title>
<url>www.carrot.com</url>
</app>
<app>
<title>Cucumber</title>
<url>www.cucumber.com</url>
</app>
</directory>
假设我已能够将其读取并存储为字符串：
s = '<directory><app><title>Carrot</title><url>www.google.com</url></app><app><title>Cucumber</title><url>www.cucumber.com</url></app></directory>';
如何将它转换为以下格式的 JavaScript 对象？
{
"directory": {
"app": [
{ "title": "Carrot", "url": "www.carrot.com" },
{ "title": "Cucumber", "url": "www.cucumber.com" }
]
}
}