Question

有一个包含这样的对象的数组：

    [{id: "58eeed338b115",  name: "Bob", avatar: "" },
{id: "58eeed338b115",  name: "Bob", avatar: "" }]

我需要更改属性的顺序：

    [{avatar: "",  name: "Bob",id: "58eeed338b115"},
{avatar: "",  name: "Bob",id: "58eeed338b115"} ]

在实际任务中我有大约20个obj，如何改变秩序？用于？我不知道如何做到这一点。我想设置manualy命令，obj中的参数可以是大约10

Answer 1

const arr = [{id: "58eeed338b115",  name: "Bob", avatar: "" },
{id: "58eeed338b115",  name: "Bob", avatar: "" }]

const sortOrder = {'avatar': 1, 'id': 2, 'name': 3}



const res = arr.map(o => Object.assign({}, ...Object.keys(o).sort((a, b) => sortOrder[a] - sortOrder[b]).map(x => { return { [x]: o[x]}})))

console.log(JSON.stringify(res, null, 2))

Answer 2

尝试：

const sortObj = ({id, name, avatar, ...more}) => ({avatar, name, id, ...more})

const objs = [...]
const objsSorted = objs.map(sortObj)

Answer 3

var sortObj = function sortObj(obj) {
    let keys = [];
    for (let key in obj) {
      if (obj.hasOwnProperty(key)) {
        keys.push(key);
      }
    }
    keys.sort();
    
    let newObj = {};
    for (let i = 0; i < keys.length; ++i) {
      newObj[keys[i]] = obj[keys[i]];
    }
    return newObj;
};

let arr = [{id: "58eeed338b115",  name: "Bob", avatar: "" },
{id: "58eeed338b115",  name: "Bob", avatar: "" }];

for (let i = 0; i < arr.length; ++i) {
  console.log(sortObj(arr[i]));
}

更改对象中属性的顺序（javascript）

3 个答案: