foreach js reformat data

Question

i am creating a rest API and i get data from one of my request but i want to parse them

i try to create a foreach loop but a get in every line the same result there is a sample of my data

 result = [
 {
 "id": 1,
 "UserID": 2,
 "idFriend": 3,
 "status": "pending",
 "UserId": 2,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar",
 "isAdmin": false,
 "isOut": false,
 "bio": null,
 }
 },
 {
 "id": 2,
 "UserID": 2,
 "idFriend": 1,
 "status": "pending",
 "UserId": 2,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar",
 "isAdmin": false,
 "isOut": false,
 "bio": null,
 }
 },
]

and i want to get my data modifed like

`result = [{
 "id"= 1,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar"
 }
 },
 {
 "id"= 2,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar"
 }
 }
 }]`

do you know how can i do it ? thx a lot

• charlietfl: Where's your code? Stackoverflow isn't a free code writing service....or a "how to" tutorial service. You are expected to show your attempts to solve issues yourself and people help you fix your code
• tetar: i just past 2 hour to deal with this issue and in 3 min in Stackoverflow someone give me the solution. i think the purpose of this web site is to help each other.
• charlietfl: No...that is not how it is supposed to work. Take some time to read help center

Answer 1

Just a mapping function.

const newResult = [];
result.forEach((r) => {
 newResult.push({
 id: r.id,
 user: {
 id: r.User.id,
 email: r.User.email,
 username: r.User.username
 }
 });
});
console.log(newResult);

I am pretty sure there are better cleaner and more performant ways to do this. I recommend using lodash map function:

https://lodash.com/docs/4.17.5#map

Answer 2

You can use Array.prototype.map:

result = [
 {
 "id": 1,
 "UserID": 2,
 "idFriend": 3,
 "status": "pending",
 "UserId": 2,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar",
 "isAdmin": false,
 "isOut": false,
 "bio": null,
 }
 },
 {
 "id": 2,
 "UserID": 2,
 "idFriend": 1,
 "status": "pending",
 "UserId": 2,
 "User": {
 "id": 2,
 "email": "[email protected]",
 "username": "tetar",
 "isAdmin": false,
 "isOut": false,
 "bio": null,
 }
 },
]
let out = result.map(el=>{return {id: el.id, User:{id: el.User.id, email: el.User.email, username:el.User.username}}});
console.log(out);