如果我不知道它是什么,我怎么能在AngularJS中访问JSON属性名？

给定 JSON对象(formData),我试图使用AngularJS遍历对象并输出RealEstateInfo和PersonalTaxInfo.对于我的生活,我似乎无法弄清楚如何获得属性名称.有任何想法吗？

顺便说一下,(键,值)不起作用. key给出了索引号,为整个对象赋值.

<ul>
    <li ng-repeat="item in formsData">
        {{item.value}} //What goes here to get "RealEstateInfo" the 1st loop,and "PersonalTaxInfo" the second loop?
    </li>
<ul>

$scope.formData = [
{
    "RealEstateInfo": [
    {
        "Group": "General","Fields": [
        {
            "Name": "TitleType","Label": "Title Type","Type": "dropdown",},{
            "Name": "NameIfAvailable","Label": "Name if available","Type": "string"
        }]
    },{
         "Group": "Personal","Fields": [
         {
             "Name": "TitleType",{
             "Name": "NameIfAvailable","Type": "string"
         }]
     }]
},{
    "PersonalTaxInfo": [
    {
        "Group": "General","Fields": [
        {
             "Name": "TitleType",{
        "Group": "PersonalInfo","Type": "string"
        }]
    }]
}]

ng-repeat="(key,value) in data"