Angular 当对象键未知时，如何获取数组对象的对象？

我有一个对象数组，其中每个对象都有一个对象，如下所示

[{
    "-KzbaPS3vuZTG2LbuB3j": {
        "age": "24",
        "branchname": "columbia",
        "city": "hyd",
        "date": 1511418820987,
        "gender": "M",
        "id": "rcjcx8",
        "mobile": "9898989898",
        "name": "Patient1",
        "op": 100
    }
}, {
    "-KzTh7RTtTWviL4HkHv0": {
        "age": "21",
        "branchname": "kims",
        "city": "vizag",
        "date": 1511334303070,
        "gender": "F",
        "id": "45krxb",
        "mobile": "9898989898",
        "name": "aruna",
        "op": 100
    },
    "-KzTiCIheMPJIpJhPXQJ": {
        "age": "22",
        "branchname": "kims",
        "city": "hyderabad",
        "date": 1511420593865,
        "gender": "F",
        "id": "c7iqws",
        "mobile": "9878787878",
        "name": "vineesha",
        "op": 100
    },
    "-KzTnzLnRsdFWg-m5b9U": {
        "age": "26",
        "branchname": "kims",
        "city": "bheemavaram",
        "date": 1511420593865,
        "gender": "F",
        "id": "ujtgz",
        "mobile": "9876787898",
        "name": "Madhavi",
        "op": 100
    }
}]

---

对象未知，那么如何将对象的所有对象合并到一个数组中？

如果您对Lodash没有意见，可以执行以下操作：

// assuming the above data is in variable "data"

let structuredData = _.flatten(data).reduce((a,c) => _.assign(c), {});

你可以用

array.forEach（obj=>{
设key=Object.keys（obj）[0]；
让yourValue=obj[key]；
//您的值={“年龄”：“21”，“id”：“rcjcx8”…}在您的案例中，用于第一项
});

迭代并获取键，然后使用键获取值

HTML文件

{{jsonDataKeys}}

<hello name="{{ name }}"></hello>
<p>
  Start editing to see some magic happen :)
</p>
<!--<div>{{jsonData | json}}</div>-->

 <div *ngFor="let arr of jsonData">
  <div *ngFor="let item of jsonDataKeys">
    item : {{item}}
    {{arr[item] | json}}
    <br>
    <br>
  </div>
 </div>

{{jsonDataKeys}

开始编辑以查看发生的奇迹：）

项目：{{item}
{{arr[项目]| json}

{{jsonDataKeys}}

<hello name="{{ name }}"></hello>
<p>
  Start editing to see some magic happen :)
</p>
<!--<div>{{jsonData | json}}</div>-->

 <div *ngFor="let arr of jsonData">
  <div *ngFor="let item of jsonDataKeys">
    item : {{item}}
    {{arr[item] | json}}
    <br>
    <br>
  </div>
 </div>