javascript - 重新格式化对象数组

Question

我正在尝试重新格式化该对象数组:

let users = [{
        Username: "test1",
        Attributes: [{
            Name: "sub",
            Value: "1234"
        }, {
            Name: "email",
            Value: "test1@gmail.com"
        }]
    },
    {
        Username: "test2",
        Attributes: [{
            Name: "sub",
            Value: "5678"
        }, {
            Name: "email",
            Value: "test2@gmail.com"
        }]
    },
]

我想重新格式化为:

users: [{
            Username: "test1",
            sub: "1234",
            email: "test1@gmail.com}, {
                    Username: "test2",
                    sub: "5678",
                    email: "test2@gmail.com}]

如何重新格式化该对象数组？谢谢

Answer 1

您可以使用map 循环遍历数组。使用reduce将Attributes数组汇总为一个对象。

let users = [{"Username":"test1","Attributes":[{"Name":"sub","Value":"1234"},{"Name":"email","Value":"test1@gmail.com"}]},{"Username":"test2","Attributes":[{"Name":"sub","Value":"5678"},{"Name":"email","Value":"test2@gmail.com"}]}]

let result = users.map(({Username,Attributes}) => {
  let a = Attributes.reduce((c, v) => ({ ...c,[v.Name]: v.Value}), {});
  a.Username = Username;
  return a;
});

console.log(result);

较短版本:

let result = users.map(({Username, Attributes})=>({Username,...Attributes.reduce((c,v)=> ({...c, [v.Name]: v.Value}) ,{})}));