如何使用key将对象数组推入数组

Question

这是我的主要数据：(this.data)

    {
                    "id": 7,
                    "name": "Revenue",
                    "characterCount": 1,
                    "maxLevel": 4,
                    "individualCode": "1",
                    "combinedCode": "02-1",
                    "isActive": true,
                    "topLevelId": 2,
                    "topLevelChildCount": 1,
                    "parentId": 2,
                },
 {
                    "id": 8,
                    "name": "Revenue1",
                    "characterCount": 1,
                    "maxLevel": 4,
                    "individualCode": "1",
                    "combinedCode": "02-1",
                    "isActive": true,
                    "topLevelId": 2,
                    "topLevelChildCount": 1,
                    "parentId": 2,
                },

我有一个子数据: this.childData

{
                "id": 14,
                "name": "Sales",
                "characterCount": 1,
                "maxLevel": 2,
                "individualCode": "1",
                "combinedCode": "02-1-1",
                "isActive": true,
                "topLevelId": 2,
                "topLevelChildCount": 0,
                "parentId": 7        
            },
{
                "id": 15,
                "name": "Sales1",
                "characterCount": 1,
                "maxLevel": 2,
                "individualCode": "1",
                "combinedCode": "02-1-1",
                "isActive": true,
                "topLevelId": 2,
                "topLevelChildCount": 0,
                "parentId": 7        
            }

我想在主this.data中以特定的索引推送此childData，例如索引0，关键字为“this.data”

意味着我的数据应该是这样的：

{
                    "id": 7,
                    "name": "Revenue",
                    "characterCount": 1,
                    "maxLevel": 4,
                    "individualCode": "1",
                    "combinedCode": "02-1",
                    "isActive": true,
                    "topLevelId": 2,
                    "topLevelChildCount": 1,
                    "parentId": 2,
                    "child": [
                        {
                            "id": 14,
                            "name": "Sales",
                            "characterCount": 1,
                            "maxLevel": 2,
                            "individualCode": "1",
                            "combinedCode": "02-1-1",
                            "isActive": true,
                            "topLevelId": 2,
                            "topLevelChildCount": 0,
                            "parentId": 7        
                        },
                        {
                            "id": 15,
                            "name": "Sales1",
                            "characterCount": 1,
                            "maxLevel": 2,
                            "individualCode": "1",
                            "combinedCode": "02-1-1",
                            "isActive": true,
                            "topLevelId": 2,
                            "topLevelChildCount": 0,
                            "parentId": 7        
                        }

                    ]

                },
                {
                    "id": 8,
                    "name": "Revenue1",
                    "characterCount": 1,
                    "maxLevel": 4,
                    "individualCode": "1",
                    "combinedCode": "02-1",
                    "isActive": true,
                    "topLevelId": 2,
                    "topLevelChildCount": 1,
                    "parentId": 2,
                },
}

我试过这个this.dataindex.push(this.childData)；

但对我不起作用。有什么方法可以让我做到这一点吗？

getChildData(id,index)
    {
      console.log('id',id);
      console.log('index',index);
      const params ={};
      params['parentId'] = id;
      this.jvLedgerReportService.getMonthlyActivityReport(params).subscribe(data => {
        this.childData = data.items
        console.log("childData",this.childData);
        this.data[index].push(this.childData);
        console.log("after",this.data);
      })
    }

Answer 1

this.data[index]['child'] = this.childData;
   OR
this.data[index].child = this.childData;

Answer 2

创建一个" child“数组键，并将子数据推送到其中

var parent = [];

parent.push({
    "id": 7,
    "name": "Revenue",
    "characterCount": 1,
    "maxLevel": 4,
    "individualCode": "1",
    "combinedCode": "02-1",
    "isActive": true,
    "topLevelId": 2,
    "topLevelChildCount": 1,
    "parentId": 2,
    "child":[]
});
    parent.push({
        "id": 8,
        "name": "Revenue1",
        "characterCount": 1,
        "maxLevel": 4,
        "individualCode": "1",
        "combinedCode": "02-1",
        "isActive": true,
        "topLevelId": 2,
        "topLevelChildCount": 1,
        "parentId": 2,
        "child":[]
});

var childData = [{
    "id": 14,
    "name": "Sales",
    "characterCount": 1,
    "maxLevel": 2,
    "individualCode": "1",
    "combinedCode": "02-1-1",
    "isActive": true,
    "topLevelId": 2,
    "topLevelChildCount": 0,
    "parentId": 7        
},
{
    "id": 15,
    "name": "Sales1",
    "characterCount": 1,
    "maxLevel": 2,
    "individualCode": "1",
    "combinedCode": "02-1-1",
    "isActive": true,
    "topLevelId": 2,
    "topLevelChildCount": 0,
    "parentId": 7        
}];

parent[0].child.push(childData);

console.log(parent); 

Answer 3

​

var parent = [{
                    "id": 7,
                    "name": "Revenue",
                    "parentId": 2,
                },
              {
                    "id": 8,
                    "name": "Revenue1",
                    "parentId": 2,
                }];

var child = [{
                    "id": 11,
                    "name": "Revenue",
                    "parentId": 7,
                },
                {
                    "id": 81,
                    "name": "Revenue1",
                    "parentId": 7,
                }];

var result = parent.map(x=> {
  var childData = child.filter(y=>y.parentId==x.id);
  debugger;
  if (childData && childData.length >0) {
    x['child'] = childData;
  }
  return x;
});

console.log(result);

​

循环通过父记录，并将ID与子记录进行匹配。如果找到记录，则将其作为Child属性添加到您的主记录中，并存储数据。