Object.keys（）获取子项数

Question

我有以下数据源 - 使用X2JS转换为使用XML的JSON：

{
    "blog": {
        "article": [
            {
                "id": "1",
                "author": "eat-sleep-code",
                "title": {
                    "__cdata": "Thefirstarticle."
                },
                "content": {
                    "__cdata": "\nThisismyfirstarticleinmytestsite.\n"
                },
                "createdate": "2014-05-09"
            },
            {
                "id": "2",
                "author": "eat-sleep-code",
                "title": {
                    "__cdata": "Thesecondarticle."
                },
                "content": {
                    "__cdata": "\nThisismysecondarticleinmytestsite.Thisarticle'screatedateisactuallyearlier.\n"
                },
                "createdate": "2014-05-08"
            }
        ]
    }
}

我想找到＆＃34;文章的数量＆＃34;。

Object.keys(jsonObject).length;只是得到了我1.我猜是因为它找到了一个＆＃34;博客＆＃34;项目

Answer 1

jsonObject.blog.article.length