我有一個物件陣列，需要轉換為具有分配給相同鍵的唯一值陣列的物件
所以為了幫助我學習，有人可以幫我確定如何獲得這個輸出嗎？
//輸入
let users = [
{ id: 1, name: "Alan", surname: "Davis", age: 34, isAdmin: 'yes'},
{ id: 2, name: "John", surname: "Doe", age: 35, isAdmin: 'no'},
{ id: 3, name: "Monica", surname: "Bush", age: 25, isAdmin: 'no'},
{ id: 4, name: "Sandra", surname: "Back", age: 23, isAdmin: 'no'},
{ id: 5, name: "Jacob", surname: "Front", age: 34, isAdmin: 'yes'},
];
//輸出
let unique = {
id: [1, 2, 3 ,4 ,5],
name: ['Alan', 'John', 'Monica', 'Sandra', 'Jacob'],
surname: ['Davis', 'Doe', 'Bush', 'Back', 'Front'],
age: [34, 35, 25, 23],
isAdmin: ['yes', 'no'],
}
uj5u.com熱心網友回復：
這是一種方法
- 遍歷陣列中第一個物件的鍵以生成鍵串列
- 創建對應值的陣列。過濾陣列中的欺騙。
- 將鍵和值包裝回物件
let users = [
{ id: 1, name: "Alan", surname: "Davis", age: 34, isAdmin: 'yes'},
{ id: 2, name: "John", surname: "Doe", age: 35, isAdmin: 'no'},
{ id: 3, name: "Monica", surname: "Bush", age: 25, isAdmin: 'no'},
{ id: 4, name: "Sandra", surname: "Back", age: 23, isAdmin: 'no'},
{ id: 5, name: "Jacob", surname: "Front", age: 34, isAdmin: 'yes'},
];
let unique = Object.fromEntries(
Object.keys(users[0]).map(k =>
[k, users.map(u => u[k]).filter((value, i, arr) => arr.indexOf(value) === i)]
)
);
console.log(unique);轉載請註明出處，本文鏈接：https://www.uj5u.com/net/483293.html
標籤：javascript 数组 目的 唯一键