Javascript ES6/ES5 find in array and change

Question

I have an array of objects. I want to find by some field, and then to change it:

var item = {...}
var items = [{id:2}, {id:2}, {id:2}];

var foundItem = item         


        

Answer 1

May be use Filter.

const list = [{id:0}, {id:1}, {id:2}];
let listCopy = [...list];
let filteredDataSource = listCopy.filter((item) => {
       if (item.id === 1) {
           item.id = 12345;
        }

        return item;
    });
console.log(filteredDataSource);

Array [Object { id: 0 }, Object { id: 12345 }, Object { id: 2 }]