How to update object in React state

Question

I have an indexed list of users in the JS object (not array). It\'s part of the React state.

{
    1: { id: 1, name: \"John\" }
    2: { id: 2, name         


        

Answer 1

Apart from _.extend you can use Map for storing user

let user = new Map();
user.set(4, { id: 4, name: "Jane" }); //adds with id (4) as key
user.myMap.set(2, { id: 2, name: "Peter" }); // set user #2 to "Peter"
user.delete(3); //deletes user with id 3