如何改变对象的结构

Question

我从已转换成的数据库中检索到数据：

"items": {
    "title - nameSection": [
        {
            "nameBoard": "xxx",
            "idTask": 1,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "xxx",
            "contentSection": "xxx"
        },
        {
            "nameBoard": "xxx",
            "idTask": 2,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "xxx",
            "contentSection": ""
        }
    ],
    "title 2 - nameSection": [
        {
            "nameBoard": "xxx",
            "idTask": 3,
            "nameTask": "xxx",
            "contentTask": "",
            "complete": 0,
            "idSection": 2,
            "nameSection": "xxx",
            "contentSection": ""
        }
    ]
}

他使用lodash获得的：

   let grouped = groupBy(results, function (result) {
        return result.nameSection;
    })

我的结果是来自数据库的原始数据。 我注意到 lodash 将我的 'nameSection' 设置为 JSON 中的键，但是我不知道如何获得所需的效果。 我正在尝试使用 .map() （对吗？）为了得到这个结果：

"items": {
    "nameSection": "title - nameSection",
        "data": [
        {
            "nameBoard": "xxx",
            "idTask": 1,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "title - nameSection",
            "contentSection": "xxx"
        },
        {
            "nameBoard": "xxx",
            "idTask": 2,
            "nameTask": "xxx",
            "contentTask": "xxx",
            "complete": 1,
            "idSection": 1,
            "nameSection": "title - nameSection",
            "contentSection": ""
        }
    ],
        "nameSection": "title2 - nameSection", 
            "data": [
        {
            "nameBoard": "xxx",
            "idTask": 3,
            "nameTask": "xxx",
            "contentTask": "",
            "complete": 0,
            "idSection": 2,
            "nameSection": "title 2 - nameSection",
            "contentSection": ""
        }
    ]
}

对于如何解决问题的任何帮助和提示，我将不胜感激。

Answer 1

将对象的条目映射到具有nameSection 键和data 数组的对象，同时覆盖数组中每个对象的nameSection 属性：

const items={"title - nameSection":[{nameBoard:"xxx",idTask:1,nameTask:"xxx",contentTask:"xxx",complete:1,idSection:1,nameSection:"xxx",contentSection:"xxx"},{nameBoard:"xxx",idTask:2,nameTask:"xxx",contentTask:"xxx",complete:1,idSection:1,nameSection:"xxx",contentSection:""}],"title 2 - nameSection":[{nameBoard:"xxx",idTask:3,nameTask:"xxx",contentTask:"",complete:0,idSection:2,nameSection:"xxx",contentSection:""}]};

const output = Object.entries(items)
  .map(([ nameSection, origData ]) => ({
    nameSection,
    data: origData.map(obj => ({ ...obj, nameSection }))
  }))
console.log(output);