数组的json测试

我正在使用一个节点模块来返回一些数据。数据将通过以下两种方式之一返回:

单一记录

single = {"records[]":{"name":"record1", "notes":"abc"}}

多条记录

multiple = {"records[]":[{"name":"record1", "notes":"abc"},{"name":"record2", "notes":"xyz"}]}

如果我调用以下命令,我可以从单个记录中获取值

single['records[]'].name // returns "record1"

如果有多张唱片我会这样打电话给你

multiple['records[]'][0].name // returns "record1"

当我返回一条记录,但将其视为多条记录时,就会出现问题

single['records[]'][0].name // returns undefined

现在我这样测试:

var data = nodemodule.getRecords();
if(data['records[]'){ //test if records are returned
    if(data['records[]'].length){ //test if 'records[]' has length
        // ... records has a length therefore multiple exist
        // ... for loop to loop through records[] and send data to function call
    } else {
        // .length was undefined therefore single records
        // single function call where I pass in records[] data
    }
}

这是测试单记录还是多记录的最佳方法,因为我受到了节点模块返回的内容的限制,还是我遗漏了一些更简单的方法?