node.js - Json对象数组:replacing 'key' names with their values to avoid same key name and easy retrieval

Question

我有一个像这样的 json 对象数组:

[
    {
        "entity": "clientModal",
        "value": "MacBook"
    },
    {
        "entity": "siteName",
        "value": "abde"
    },
    {
        "entity": "clientModal",
        "value": "MacBook"
    },
    {
        "entity": "siteName",
        "value": "abcd"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "timePeriod",
        "value": "week"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "timePeriod",
        "value": "week"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "clientName",
        "value": "ppphone"
    },
    {
        "entity": "clientName",
        "value": "pppiphone"
    }
]

我希望键“实体”在任何地方都应该被它的值替换，并且键“值”必须位于其中。 像这样:

[ { “客户名称”: { “值(value)”:“ppiphone” } } ]

我尝试了一切，但仍然没有找到任何东西。

Answer 1

您需要映射数组并创建一个新对象，其中实体值将用作键的名称。

const arrays = [
    {
        "entity": "clientModal",
        "value": "MacBook"
    },
    {
        "entity": "siteName",
        "value": "abde"
    },
    {
        "entity": "clientModal",
        "value": "MacBook"
    },
    {
        "entity": "siteName",
        "value": "abcd"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "timePeriod",
        "value": "week"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "timePeriod",
        "value": "week"
    },
    {
        "entity": "clientName",
        "value": "ghe-1202m"
    },
    {
        "entity": "clientName",
        "value": "ppphone"
    },
    {
        "entity": "clientName",
        "value": "pppiphone"
    }
];

const mappedArray = arrays.map(arr => ({
   [arr.entity]: {
     value: arr.value
   }
}));

console.log(mappedArray);