JSFiddle - React, Tailwind, and code Playground

JavaScript

var users = [{
  "user": {
    "id": 1,
    "username": "google"
  }
}, {
  "user": {
    "id": 2,
    "username": "yahoo"
  }
}]

const result = users.filter(x => x.user.id === 1);

console.log(result);