我如何创建一个函数来更改位于数组内部的对象内的属性，在 JSON 中

Question

所以我目前已经在 JavaScript 任务上停留了几个小时。

所以我得到了一个包含以下数据的 Json 文件：

{
    "owner": "Jun31d",
    "info": [{ "id": 1, "name": "bob", "flavour": "vanilla", "age": 43 },
             { "id": 2, "name": "Juneid", "flavour": "Chocolate", "age": 19 },
             { "id": 3, "name": "Patrick", "flavour": "Strawberry", "age": 25 },
             { "id": 4, "name": "Jean", "flavour": "Mint", "age": 31 },
             { "id": 5, "name": "Ahmad", "flavour": "vanilla", "age": 18 },
             { "id": 6, "name": "Ali", "flavour": "Bubblegum", "age": 19 },
             { "id": 7, "name": "Frank", "flavour": "Pistachio", "age": 23 }
            ]
}

我的作业说明如下：

Instruction

因此，根据我的理解，我需要创建一个包含两个字符串参数的函数，并且我需要将位于数组中的对象内部的属性更改为新的属性.

到目前为止，这是我所做的：

'use strict'

const iceCream = require('./main.json')

let namespace = {

    changeProp : function (newprop,oldprop) {
        for (let oldprop in iceCream.info) {
           
        }
    }


}

我知道一点也不多，但我只是想要一些帮助，以了解我如何才能在我的作业中取得更多进展。

感谢任何帮助，谢谢

Answer 1

您可以使用 map, Object.keys, and reduce

轻松地将 oldKey 替换为 newKey

const data = {
  owner: "Jun31d",
  info: [
    { id: 1, name: "bob", flavour: "vanilla", age: 43 },
    { id: 2, name: "Juneid", flavour: "Chocolate", age: 19 },
    { id: 3, name: "Patrick", flavour: "Strawberry", age: 25 },
    { id: 4, name: "Jean", flavour: "Mint", age: 31 },
    { id: 5, name: "Ahmad", flavour: "vanilla", age: 18 },
    { id: 6, name: "Ali", flavour: "Bubblegum", age: 19 },
    { id: 7, name: "Frank", flavour: "Pistachio", age: 23 },
  ],
};

function changePropertyName(arr, oldName, newName) {
  return arr.map((o) => {
    return Object.keys(o).reduce((acc, curr) => {
      curr === oldName ? (acc[newName] = o[oldName]) : (acc[curr] = o[curr]);
      return acc;
    }, {});
  });
}

console.log(changePropertyName(data.info, "flavour", "bestFlavour"));

/* This is not a part of answer. It is just to give the output fill height. So IGNORE IT */
.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 2

您可以这样做。简单、简单且令人讨厌的解决方案。

const data = {
  owner: 'Jun31d',
  info: [
    { id: 1, name: 'bob', flavour: 'vanilla', age: 43 },
    { id: 2, name: 'Juneid', flavour: 'Chocolate', age: 19 },
    { id: 3, name: 'Patrick', flavour: 'Strawberry', age: 25 },
    { id: 4, name: 'Jean', flavour: 'Mint', age: 31 },
    { id: 5, name: 'Ahmad', flavour: 'vanilla', age: 18 },
    { id: 6, name: 'Ali', flavour: 'Bubblegum', age: 19 },
    { id: 7, name: 'Frank', flavour: 'Pistachio', age: 23 }
  ]
};

const renameProperty = (a, e, n) =>
    a.map((el) => {
        el[n] = el[e];
        delete el[e];
        return el;
    });

console.log(renameProperty(data.info, "id", "_id"));

我如何创建一个函数来更改位于数组内部的对象内的属性，在 JSON 中

How do i create a function that will change the property inside an object that is located inside of an array, in a JSON

javascript

json

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我如何创建一个函数来更改位于数组内部的对象内的 属性，在 JSON 中

How do i create a function that will change the property inside an object that is located inside of an array, in a JSON

javascript

json

namespaces

function

object

我如何创建一个函数来更改位于数组内部的对象内的属性，在 JSON 中