const person = { name: "Carlos", scores: [10, 20, 30] };
const clone = { ...person };

clone.name = "Diana";
clone.scores.push(40);

const snapshot = Object.assign({}, person);
snapshot.name = "Elena";
snapshot.scores.push(50);

console.log(person.name);
console.log(person.scores.length);
console.log(clone.name);
console.log(clone.scores === person.scores);